Meeker's
Mechanical
Nature Antiques
Larry and Carole
Meeker

Purveyors of Americana
Patented & Mechanical Antiques
www.Patented-Antiques.com

patentedantiques@gmail.com
Orders / Inquiries / Questions

530-748-7297
(ORDERS ONLY)

Scientific / Technology & Office Related Antiques

Electrical / Typewriters / Telegraph / Appliances
Light Bulbs / Pencil Sharpeners / Calculation & More


K & E / Keuffel & Esser 4012 Thacher Slide Rule / CalculatorK & E / Keuffel & Esser 4012 Thacher Slide Rule / Calculator (Last Model) This #4012 Thatcher calculator / slide rule is in super nice condition.  The serial # is 6285 and this # can be found on the original OAK mounting board near the top back edge.  Near the end of production K & E stopped using the typical mahogany mounting board and outer box and began using oak for the last few hundred before ending production.  This 4012 oak box & base variant is much harder to find than the earlier mahogany versions.  In addition to the K & E serial number there is also a brass plaque on the base board indicating it was property of the US Navy at one time. 

The inner scales on the drum are white and very nice.  The scales on the outer frame are near perfect as well.  They have hardly yellowed at all and there is no lifting of the paper scales or spotting to be seen.  The instructions on the base are very nice as can be seen in the pics, . The oak box is nice noting a few scratches and some loses to the finish. There are no names, initials, or other carved into the box, base, or calculator.

The Thacher calculator has a near unique sliding drum design whose scales total over 30' long if laid out in a line. Edwin Thacher first patented the idea for this slide rule / calculator in 1881 in England. The idea was an immediate success with the scientific and engineering communities. K & E bought they rights to sell and manufacture the popular rule.  Stanley initially produced them in England for K & E. and production was moved to the states near the turn of the century.  The Thatcher calculator was first offered by K & E in their 1887 catalog as the 1740-N. In 1890 they dropped the N. In 1899 they changed the calculators catalog # to 4012 or 4013. The 4013 being the upgraded model w/ a built in magnifier. There were approx. 7000 total units made. The inventors name is Thacher, but it was misspelled Thatcher on almost all versions of the calculator that K & E offered, hence the use of two different spellings of Thatcher / Thacher in this ad and on the rule itself.

A nice piece that will display well and be a great addition to the old office or calculation related collection!!  Enjoy.

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SR-4012N

Fine . . . . . $1295.00

To Order Email:  patentedantiques@gmail.com





Curta Type 2 CalculatorCurta Type II Calculator # 558022 This is a very nice Type II Curta calculator. The serial number 558022. It is a later model and has the two tone color scheme on the body. The original fold out instruction sheet and manual show some typical wear.  They are dated 1974. Cosmetically this Curta is very nice with some minor scuffs on the bottom. It functions smoothly and flawlessly. The black plastic case with its rubber bumpers is in great condition as well.

The main difference between a Type 1 & 2 are the number of places it has. The type II Curta has a larger capacity than the type 1, with 11 columns that carry out to 15 places. It is pretty incredible that they were able to get all that capacity and capability to fit into the palm of a users hand. Both types were both being offered simultaneously although the Type 1 was introduced first a few years before the Type 2 came to market. 

The Curta calculator is one of the most interesting designs of manual calculators ever designed. Before the advent of hand held electronic calculators they wereCurta Calculator Type II cutting edge technology and the final word in mechanical calculators.The introduction of the hand held electronic calculator ended the Curtas reign as the calculator of choice for use, and began it accent into the realm of one of the most sought after collectible calculating devices.

These devices were first invented by Carl Herzstark while imprisoned in a German concentration camp during World War II. On the bottom of the calculator is the manufacturer info, and it says Made in Liechtenstein, (Customs Union with Switzerland.) by Contina LTD. Mauren System Curt Herzstark. The black plastic case dimensions are approximately 4 5/8" tall by 2 1/4" diameter. Inside of the black plastic case has both foam pads to protect the device.

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CURTA-558022

Fine . . . . . $1295.00

To Order Email:  patentedantiques@gmail.com





Curta Type II Calculator # 525210 w/ Box & PaperworkCurta Type II Calculator # 525210 w/ Box & Paperwork This is a very nice Type II Curta calculator. The serial number is 525210. It comes in the original cardboard box and associated paperwork. The original fold out instruction sheet and manual are nice. The box shows age.

The type II Curta has a larger capacity than the type 1, with 11 columns that carry out to 15 places. It is pretty incredible that they were able to get all that capacity and capability to fit into the palm of a users hand.  Before the advent of hand held electronic calculators Curtas were cutting edge technology and the final word in mechanical calculators. These devices were first invented by Carl Herzstark while imprisoned in a German concentration camp during World War II. On the bottom of the calculator is the manufacturer info Made in Liechtenstein, (Customs Union with Switzerland.) by Contina LTD. Mauren System Curt Herzstark.

All aspects of this Curta are very nice. It functions smoothly and flawlessly. The black metal case with its rubber bumpers is in great condition.  The black metal case measures approximately 4 5/8" tall by 2 1/4" diameter. The case has both foam pads to protect the device.

The Curta calculator is one of the most interesting designs of manual calculators ever designed. The introduction of the hand held electronic calculator ended the Curtas reign as the calculator of choice for use, and began it accent into the realm of one of the most sought after of collectible calculating devices.  The end of an era!!

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CURTA-525210

Fine . . . . . $1695.00

To Order Email:  patentedantiques@gmail.com





Heuer Game Master StopwatchHeuer Game Master Stopwatch This is a very nice example that has seen little use. I believe it dates from the 1960s and it has sat unused for the last 40 - 50 or so years. It comes with the original leather case, original instruction pamphlet, and it has its original leather wrist strap marked Heur. It works as it should. The original owner was involved with car racing and automobile rallies a long time ago.  I also have a couple car rally booklets with mileage / time charts, "Floyd's Factors, & Cur-TA-ble, by Williard Coddington", that would be used with a Curta and stopwatch to manage rallies.  (see last pics)

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STOPWTCH

Fine . . . . . $595.00

To Order Email:  patentedantiques@gmail.com





Car Rally BooksRoad Rally Books   I also have a couple car rally booklets with mileage / time charts, "Floyd's Factors, & Cur-TA-ble, by Williard Coddington", that would be used with a Curta and stopwatch to manage car / road rallies.

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RALLY-BKS

Fine . . . . . $45.00 / Pair

To Order Email:  patentedantiques@gmail.com



Slide Rules & Calculators
By Curta - Pickett - Sun Hemmi - Aristo & Others



Pickett N1010-ES Trig 4' Classroom Teaching Aid Slide RulePickett N1010-ES Trig 4' Classroom Teaching Aid Slide Rule  The condition of this 4' teaching aid sliderule is very nice.  It is model # N01010-ES Trig rule. It dates from the 1960's or 70's.  One ding as pictured on the back side.  Nice!!

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SR-P1010-2

Fine . . . . . $325.00

To Order Email:  patentedantiques@gmail.com





Melcor 1000 Electronic CalculatorMelcor 1000 Electronic Calculator   This calculator is NOS / never been used.  It had an original Melcor Battery in it that leaked a bit.  I could not get it to light up with a new battery or with the adapter seen. 

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CALC-MELCOR-1000

Fine . . . . . $25.00

To Order Email:  patentedantiques@gmail.com





6 Sharp Compet Elsi-Mate Calculators6 NOS Sharp Compet Elsi-Mate Calculators   These calculators are NOS / never been used.  Buy them all or individually.  Most work, one does not. 

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CALC-6SHARP

Fine . . . . . $195.00 / Lot

To Order Email:  patentedantiques@gmail.com





Sharp Compet Elsi-Mate EL-8106 Calculator - NOSSharp EL-8106 Calculator - NOS NOS / never been used w/ original box and more.  Fired right up with 3 AA batteries installed. 

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CALC-SHARP-8106

Fine . . . . . $50.00

To Order Email:  patentedantiques@gmail.com





Sharp Elsi Mate EL-8018 Calculator - NOS Sharp Elsi Mate EL-8018 Calculator - NOS NOS / never been used.  Fired right up w/ 2 AA Batteries.   

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CALC-SHARP-8018

Fine . . . . . $40.00

To Order Email:  patentedantiques@gmail.com





Sharp Elsi Mate EL-8010 Slim Line CalculatorSharp Elsi Mate EL-8010 Slim Line Calculator   NOS / never been used.  The small disc batteries got left in too long and leaked.  It looks like it can be cleaned, but is untested.

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CALC-SHARP-8010

Good . . . . . $20.00

To Order Email:  patentedantiques@gmail.com





Sharp Elsi Mate EL-8114 CalculatorSharp Elsi Mate EL-8114 Calculator   NOS / never been used.  Fired right up w/ 4 AA Batteries. 

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CALC-SHARP-8114

Fine . . . . . $40.00

To Order Email:  patentedantiques@gmail.com





Sharp Compet Elsi Mate EL-5000 Electronic CalculatorSharp Compet Elsi Mate EL-5000 Electronic Calculator   NOS / never been used.  Fired right up w/ 4 AA Batteries or the adapter. The Sharp EL-5000 is a scientific calculator with 10 digits, precision and algebraic logic. It has 36 functions, 40 keys, and a VFD (vacuum fluorescent) display. The power source is 4 AA. The calculator was manufactured in Japan. Offered in 1976 only.

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CALC-SHARP-5000

Fine . . . . . $85.00

To Order Email:  patentedantiques@gmail.com




Sharp Compet Elsi-Mate EL-8002 CalculatorSharp Compet Elsi-Mate EL-8002 Calculator   This calculator is NOS / never been used.  Started right up when I installed 3 AA batteries.  You can read all about this model at  the Calculator.org site  https://www.calculator.org/calculators/Sharp_EL-8002.html   Offered in 1974 only.  Nice!!

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CALC-SHARP-8002

Fine . . . . . $45.00     SOLD!!

To Order Email:  patentedantiques@gmail.com



Electric Motors / Dynamos / Fans / Steam Engines / Water Motors
& Other Early Power Devices



Thomas Edison Mary-Ann Dynamo / Electric Motor ModelThomas Edison Mary-Ann Dynamo / Electric Motor Model   Wonderful representation. Clean, straight from the collection and ready for yours.   Nice!!    

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SE-MARYANN

Fine . . . . . $495.00 

To Order Email:  patentedantiques@gmail.com





Thomas Edison's Edison System Ampere Meter Thomas Edison's Edison System Ampere Meter  This Edison System ampere meter is a rare and important piece of Electrical history. The condition of this large and unusual Edison amp meter is exceptional. The scale reads up to 264 amps, off the scale, indicating this meter must have been used with a huge dynamo or motor.

This Edison meter measures approx. 10" across and 16" tall. The back of the case is cast iron. The etched glass face is flawless. The previous owner made a copy of the paper scale to cover the original scale to help preserve it. The original paper scale is behind the copy on the face in the pics. It is in nice condition.

The wooden case is original finish and in fine condition. The interior workings look like new. The wooden case is stamped in two places with Elec. Eng. Dept. L.S.J.U. which is Stanford University in Palo Alto CA.

A super nice and rare piece of American Electrical History that will display well and be a great addition to the old office, electrical, scientific or related collection! Nice!!

 

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AMN-ED-METER

Fine . . . . . $4450.00 

To Order Email:  patentedantiques@gmail.com





B. F. Sturtevant Co. 1/8 Horsepower Electric MotorB. F. Sturtevant Co. 1/8 Horsepower Electric Motor  A nice looking Pancake style electric motor that dates from near the turn of the century.  The founder of the company hailed from Maine, but this is marked Boston Mass where the company was formed.  The tag calls it off as being 104 volts and 1200 RPM. There is a Sturtevant history website that describes the history and more   Nice!!    

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SE-STURT-EM

Fine . . . . . $245.00

To Order Email:  patentedantiques@gmail.com



Telegraph & Telephones & More



Electrical World and Engineer Magazine January 18 1902Electrical World and Engineer Magazine January 18 1902  I have about 20 issues of this magazine in similar condition.  The first 40 or so pages are all advertising.  So are the last 10 - 15.  The middle discusses cutting edge developments in the emerging field of electricity and engineering.

There are ads for all sorts of rare things one could only wish to find.  There are fans, motors, steam engines, light bulbs, arc lamps, telephone and telegraphy related ads, ads for tools and much more.  The ads near the end mostly deal with larger things like steam engines, locomotives and large pieces of machinery and tools like milling machines, lathes and the like.  Most all are in very nice condition noting the covers are very fragile and some are loose.  The interiors on all are nice.   

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SE-MAGS-EWE-2

Good +  . . . . . . . $20.00 / Each

To Order Email:  patentedantiques@gmail.com






Electrical World and Engineer Magazine January 11 1902Electrical World and Engineer Magazine January 11 1902  I have about 20 issues of this magazine in similar condition.  The first 40 or so pages are all advertising.  So are the last 10 - 15.  The middle discusses cutting edge developments in the emerging field of electricity and engineering.

There are ads for all sorts of rare things one could only wish to find.  There are fans, motors, steam engines, light bulbs, arc lamps, telephone and telegraphy related ads, ads for tools and much more.  The ads near the end mostly deal with larger things like steam engines, locomotives and large pieces of machinery and tools like milling machines, lathes and the like.  Most all are in very nice condition noting the covers are very fragile and some are loose.  The interiors on all are nice.   

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SE-MAGS-EWE-2

Good +  . . . . . . . $20.00 / Each

To Order Email:  patentedantiques@gmail.com






Crouse Hinds 500 Amp - 125 Volt Copper & Bronze Electric Knife SwitchCrouse Hinds 500 Amp - 125 Volt Copper & Bronze Electric Knife Switch  This huge antique electrical knife switch is made of almost all copper & bronze save the 2 mounting posts at the rear of the switch and the Bakelite handle and attaching bar. All told, with all seen on the table, there is over 70 lbs of copper in this switch and attachment parts. At something over $2.00 / lb scrap that comes to $150.00 or so in scrap. 

The large switch measures approx. 18" long from handle to back joint w/ vertical post. The last two of the 1" dia. by 1 1/2 long threaded rods are steel w/ bronze or copper uppers. Note the decorative knurling and cove on each of the upper bolsters. All of the other 8 contact rods are all copper, including the threaded rods and nuts as they carried electrical current.  The smaller switch seen further back, 1 of 5, is described in the ad below. 

This large electrical knife switch came off a large lighting control panel made of a marble slab that was disassembled. It dates from right around the turn of the century.  1900 that is. It can easily be remounted to a block of wood or other material to be displayed or be put back into service.   The last 4 pics show that panel before it was taken apart.  Perfect for the Frankenstein / Steampunk / Man-cave application.  HUGE!!

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SE-BIG-SWITCH

Good    . . . . . . . $250.00

To Order Email:  patentedantiques@gmail.com






Crouse Hinds 100 Amp - 125 Volt Copper & Bronze Electric Knife SwitchCrouse Hinds 100 Amp - 125 Volt Copper & Bronze Electric Knife Switch  This antique knife switch is made of almost all copper & bronze save the Bakelite handle and attaching bar. It weighs close to 5 lbs.

The switch measures approx. 10" long from handle to back joint w/ vertical post. The last two of the 1/2" dia. by 1 1/2 long threaded rods are steel w/ bronze or copper uppers. Note the decorative knurling and cove on each of the upper bolsters. All of the other 4 contact rods are all copper, including the threaded rods and nuts as they carried electrical current.

This large electrical knife switch came off a large lighting control panel made of a marble slab that was disassembled. It dates from right around the turn of the century.  1900 that is. The condition is excellent.  It can easily be mounted to a block of wood, marble, granite or other material to be displayed or be put back into service.   Perfect for the Frankenstein / Steampunk / Mancave application.  Nice!!

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SE-K-SWITCH

Good +   . . . . . . . $125.00

To Order Email:  patentedantiques@gmail.com







Zeitsinnapparat by Spindler & Hoyer, GöttingenZeitsinnapparat Scientific Psychological Recording Device by Spindler & Hoyer, Göttingen   It is a large and graphic instrument at over 28" across.

This unusual and large scientific apparatus was designed to measure & record optical and acoustic stimuli.   There is an ID tag on one top arm with the manufacturers name Spindler & Hoyer, Göttingen. It dates from approx. 1900 and is German.

Descriptions online make this type if machine sound like a forerunner of the polygraph machine.   Information also refers to its use in the study of time. There are numerous line drawings of similar devices using the word Zeitsinnapparat online that all lead to foreign or German sites.  Here is a link to one of those German Scientific sites.

It is unclear how exactly it would work, but it seems it was meant to be driven by a motor and would be hooked up to a drum like recording machine similar to those used on steam indicators.

Very graphic, and an interesting and important part of the history of Psychological study.  Nice!!

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TIDD-TIME

Good + . . . . . $595.00

To Order Email:  patentedantiques@gmail.com



Thomas A. Edison Related



Southern California Edison SignSouthern California Edison Sign  Approx. 14" across the bottom.  On Masonite.   Nice!!

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SE-EDSIGN

Good   . . . . . . . $30.00

To Order Email:  patentedantiques@gmail.com






Thomas A. Edison Sign / BannerThomas A. Edison Sign / Banner  Approx. 15" across the bottom.  On Fabric.  Same logo as the sign above, but not marked other than the Edison name.  It has a plastic or saran wrap like covering on it of which most I removed.   Nice!!

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SE-EDSIGN-2

Good   . . . . . . . $40.00

To Order Email:  patentedantiques@gmail.com



Antique Appliances & Misc. Electric



Antique Chase Bomb 2 Cell FlashlightChase "Bomb" 2 Cell Flashlight   This dates from the 30s or so.  It turns on.  The lens ring can be twisted to act like a second switch?  I think. Marked on back Pat Apld For.  Later versions have a patent date.   Nice overall condition.

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TX-BOMB-FL

Good +  . . . . . $25.00

To Order Email:  patentedantiques@gmail.com


We buy quality Antiques in this and other categories of Antiques.

To view examples of the types of antiques and collectibles we have previously sold
and are always interested in buying please visit our Past Sales Archive Pages at our sister websitewww.AntiqBuyer.com.



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Larry & Carole Meeker