I deal in, buy and sell antique & collectible Office, Scientific, and Technology related antiques that date from near the turn of the 20th century or earlier.  This includes office related tools such as early patented antique pencil sharpeners, antique typewriters,calculators and many early electrical devices   We also deal in such things as vintage slide rules, early punch style check protectors, antique fans and other early office related collectibles. 

When I first started looking for technological and office antiques some 30 years ago many were considered to be just heavy weights.  They would be found hidden in the corner of antique mall booths or under the table at antique shows.  Jokes abounded about anchors, ropes, dumpsters and such.

Those days are over and the word has spread.  Thing is, today everyone wants to sell their 1940's - 1960's era obsolete office stuff for big bucks because of the stories they have heard, or TV shows they have seen.  They just know that their "old" and "antique" 1950's  typewriter or adding machine is valuable.  Age, rarity, or condition are hardly considered.  While that logic might hold true for first generation computers and electronic calculators, for the most part office equipment from the 20's through the 60's is not in demand, desirable or worth much at all.

The bad news is that the anchor analogies, along with the rope and heavy weight jokes still pertain to many of these later pieces.  The 1930's or later used typewriters or electric calculators, that have been sitting in the garage or in storage the last 40 years, time has not yet come.  The market may change over time for this later, readily available, and more common stuff, but I will not be around to see it, and you probably will not be either.

On the other hand, the supply of good early (pre 1900) scientific related antiques, that was once available and reasonably priced, has now for all intent and purposes disappeared from the scene and the supply has about dried up. It is that era stuff that I am looking for today, and can help you sell. 

If you have a single antique or an entire collection of office and technology related antiques for sale that you think we may be interested in, please contact us at LCM@patented-antiques.com and we will get back to you ASAP.  Thanks!!

Individual titles below that are highlighted in yellow are Select New Additions or Special Gift Ideas.   Be sure to take a look!! Click any of the BLUE HEADINGS below for the description,  price and a couple pictures

Antique & Vintage
Calculators / Key / Drum / Pinwheel / Sliders / Dials etc.
Page 1

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• Type 1 Curta Calculator with Leather Covered Case
• Type II Curta Calculator with metal Case
• 1st Model Webb Adder w/ Wooden Back  
• The "Jeffers Calculator" for Determining Cattle Feed and Nutritional Values and Costs
• A. M. Stephenson Nickeled Adder     SOLD
• Patented 1873 Stephenson / Simmons Oil City Pa Adder    SOLD
• 2 Different Webb Adders / Calculators
• Under the Counter Pull Out Discount Calculator
• Smallwood Calculator / Adder from Oakland CA
• The Standard Calcumeter 7 Place Mode w/o Reset Dial
• 3 Different Dial Adders
• The Calculus "Proves as it Calculates" Patented 1927 Calculation Device by J. J. Hinde

More Antique & Vintage
Calculators / Adders / Early Computers   etc
Page 2

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• "The Torpedo" German 5 Key Adding Machine 
• Comptator / Adder / Calculator
•  Resulta Adding Machines / Calculator
• Comptometer Adder /  Calculator
• Base 5 Adder / Calculator
• Toy Adding Machine
• Little Giant Toy Adding Machine
• HP 25E Calculator
• 3 HP 32E Calculators
• HP 33E Calculator
• HP 71B Calculator
• HP 95LX Calculator
• AND MORE

Drum & Circular Slide Rules

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• French Circular Slide Rule
• Fowler Long Scale Slide Rule in Original Hard Case
• Keuffel & Esser # 1740 / 633 ( # 4012 ) Thatcher Patent Calculator / Slide Rule     SOLD
• Precise Circular Adder /  Calculator
• Gestation & Farming Circular Calculator
• Photography Calculator Pencil 
• Circulator 3" Circular Slide Rule w/ Case & Instructions
• Concise 28N Circular Slide Rule w/ Case & Manuel
• British Voltage Drop Circular Electrical Slide Rule
• Dietzgen Halden / Calculex Pocket Watch Style Circular Slide Rule w/ Instructions & Case
• A. W. Woods Key to the Steel Square Circular Slide Rule
• And More

K & E / Keuffel & Esser Slide Rules

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• K & E / Keuffel & Esser 4017 Sperry Patent Slide Rule / Calculator
• K & E / Keuffel & Esser 4018 Pocket Calculator / Slide Rule Patent Appl'd For
• K & E / Keuffel & Esser 4088-2 Slide Rule
• Keuffel & Esser / K & E 4094 Merchants Slide Rule
• Keuffel & Esser / K & E 4095 Merchants Slide Rule
• K & E / Keuffel & Esser 4100 Stadia Slide Rule
• K & E / Keuffel & Esser 4181-1 Slide Rule
• K & E / Keuffel & Esser 4088-2SM Slide Rule
• K & E / Keuffel & Esser 4045 16 Inch Slide Rule
• Keuffel & Esser / K & E 4088-3 Slide Rule
• Keuffel & Esser / K & E 4168 Slide Rule
• 2 Keuffel & Esser Magnifiers for Slide Rules
• M. H. Reymond  Patented 1924 Leather Calculating Slide Rule
• And More
  
  

Stick Type Slide Rules by Other Makers
Page 1 (Misc)      Page 2 (Pickett)      Page 3 (Hemi / Bamboo)

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•  English Sikes Hydrometer by Josh Long w/ 2 Ivory Slide Rules Proof Rules
• Pickett #903-T Trig / Conversion Slide Rule
• Pickett #803-T Trig / Conversion Slide Rule
• Pickett #1010 Slide Rule
• All Brass Japanese Military / Artillery Sliderule 
• Sun Hemmi # 2690 Stadia Slide Rule
• Pickett N4-T Speed Rule Slide Rule
• Pickett 1006-ES Slide Rule
• Richardson c. 1909 Metal Slide Rule
• Nestler 0123 6" Slide Rule
• Thornton PIC 144 Electrical Slide Rule
• Lietz 5030 Dual Scale 6" Bamboo Slide Rule
• Dieterich Post 3060P Slide Rule
• Geotec 341 3012 Versalog Slide Rule
• Castell 63/22 Addiator Slide Rule  
• Lutz 252 Slide Rule
• 2 Pickett #520-T Air Force Photography Slide Rules
• Lee's Amortizer Interest Rate Slide Rule
• Sun Hemmi #269 Civil Slide Rule
• Novotni Weight Slide Rule
• Pickett Model 14 Military Slide Rule
• Keystone Blue Paper Co. of Philadelphia PA Slide Rule
• Charvoz Aristo 971 Hyperbolog Slide Rule
• Post 1491 Chemist Slide Rule 
• And More

* * * * We Sell Antiques! * * * *

We want to Help you Sell Your quality Antiques

If you have a single antique, or a collection of antiques to sell please contact us at LCM@patented-antiques.com giving us your PHONE NUMBER  and other contact info and we will get back to you ASAP. 

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

Please see our FAQ page, the Appraisal / Selling Page and the Selling Your Collection Pages for further info.

Thanks!!
Larry & Carole