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3 Office Antiques Collectors Books by Thomas ...
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Calculating Machines ...
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"Archimedes Model C 16" Arithmometer, 1906...
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Hines Patent Calculator, 1905 onwards...
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Thomas' "Arithmomètre", c. 1870...
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Conto Model A Calculator, 1908...
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Swiss "Conto Model C" Calculating Machine, 19...
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Madas Model 1 Calculating Machine, 1913-1916...
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T-I-M Mod. 1 (Unitas), 1907...
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4 Calculating Machines...
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4 Adding Machines...
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Curta Type II Calculator (Black), 1954...
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Arithmometer - Original Odhner (Russian), c. ...
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"Archimedes Mod. A" Arithmometer, 1906...
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3 American Adding Machines...
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Calculating Boy, c. 1913...
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"Palmer's Pocket Scale", 1844...
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"Groesbeck's Calculating Machine", 1870...
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Arithmomètre Payen, c. 1880...
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4 American Mechanical Adding Machines...
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"Bunzel" Brass Stepped-Drum Calculating Machi...
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Prototype Laughlin Automatic Adding Machine, ...
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XxX ('X multiplied by X') Keyboard Calculatin...
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6 Calculating Machines...
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Pocket Adder by Le Paute, Paris 19th Century...
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Brass Stepped-Drum Calculating Machine Bunzel...
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6 Spoked-Wheel Calculating Machines...
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Loga Calculating Drum, c. 1930...
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6 Spoked-Wheel Calculating Machines...
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2 Calculating Machines, c. 1920...
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The Summator Large Disc Adder, 1855...
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8 Mechanical Dial Adding Machines...
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6 Calculating Machines...
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"Curta Type II" (Grey), 1948...
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Burkhardt Arithmometer Model H, c. 1909...
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Thomas de Colmar Adding Machine, 1849...
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Chinese Semi-Circular Abacus, c. 1936...
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Chinese Suan Pan Duplex Abacus, c. 1940...
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Russian Stchoty Abacus, c. 1900...
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Abacus for Teaching Purposes, c. 1900...
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Early Combination of Abacus and Chalk Board, ...
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Chinese Circular Abacus "Suan Pan", c. 1936...
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6 Toothed Wheel Adders...
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4 Electric Calculating Machines...
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Edwin Thacher's Cylindrical Slide Rule Calcul...
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3 American Adding Machines...
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"The Millionaire" Calculating Machine, 1912...
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Ellis Adding Typewriter, 1910 onwards...
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4 American Adding Machines...
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The Meilicke Calculator, 1906 onwards...
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Tate's Improved Arithmometer, c. 1905...
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Rema Calculator and Dactyle Demonstration Mod...
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Saxonia Calculator, 1895...
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4 Electric Calculators with Nixie Tube Displa...
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4 Electric Calculating Machines with Printers...
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Remington Rand EDC-3A Desktop Calculator, 196...
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Sharp Compet 21 Electronic Desktop Calculator...
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SCM Cogito 240-SR Electronic Desktop Calculat...
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Web Adder and Golden Gem...
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Alpina Calculator, 1961...
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15 American Cardboard Calculating Tools...
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Collection of Electronic Table and Pocket Cal...
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2 American Adding Machines...
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Reuter's Calculating Machine, c. 1914...
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4 Mechanical Calculating Machines...
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4 American Calculating Machines...
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"Arithmomètre Payen", c. 1880...
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"Arithmomètre Payen", c. 1880...
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Sharp Compet 623B Desktop Calculator, c. 1975...
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2 GDR Calculating Machines...
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3 Electronic Desktop Calculators by Olivetti...
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Seidel & Naumann Addier Ideal, c. 1940...
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2 Vintage Electronic Calulators...
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2 x Soroban...
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The Rapid and Golden Gem...
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B.U.G. Calculator, The Lightning and Golden G...
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The Midget Adding Machine, c. 1911...
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4 Mechanical Calculating Machines...
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6 Adding Machines, c. 1950...
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Burroughs Adding Machine Company, Detroit, Mi...
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4 Electric Calculating Machines, c. 1940-60...
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5 American Adding Machines, c. 1902...
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2 Small Counters...
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Arithstyle and Golden Gem Model 16...
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The Lightning Adding Machine, c. 1900...
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Original U.S.-Patent-Model Endless Slide Rule...
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Burroughs Adding Machine, c. 1905...
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2 Mechanical Calculating Machines...
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The Improved Golden Gem Adding Machine, c. 19...
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"Saxonia" (Rolltop), 1910...
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2 Calculator Demonstration Models, c. 1950...
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Argos II and Golden Gem Chain Adders...
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Key Adding & Subtracting Machine, 1925...
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2 American Disc Adders...
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Adding Machine The Acme, c. 1902...
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XxX ('X multiplied by X') Keyboard Calculatin...
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Comptograph, c. 1898...
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"Quixsum Fractional Adding Machine Mod. C" Di...
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18 Calculating Tools...
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The Adder, 1868...
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Calculimetre Calculating Disc, c. 1875...
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2 American Disc Adders...
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Early American Monetary Transaction Table, 18...
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The "Small" Pocket Calculator, c. 1900...
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4 American Disc Adders...
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18 Calculating Tools...
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9 Calculating Discs...
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2 American Adding Machines...
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2 American Adding Machines...
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Curta Type II Calculator (Black), 1955...
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Original Patent Model by F.S. Baldwin, 1873...
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Patent Model by E.L. Bill, 1878...
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The Calculus Calculator, 1907...
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Comptometer Model No. 1, 1887...
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Group of Slide Rules...
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Adders, Slide Rules and Calculating Aids...
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3 American Disc Adders...
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3 American Disc Adders...
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4 British Calculating and Measuring Instrumen...
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3 Calculating Devices...
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3 Adding Machines...
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"Peerless Baby" Calculating Machine, 1910...
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"Monopol" Calculating Machine, 1902 onwards...
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"Commonwealth" Adding Machine, 1915...
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Morse Pre-Vis Adding Machine, 1915 onwards...
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"Millionär" Calculating Machine, 1914...
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6 American Counters, c. 1900-20...
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2 German Stepped-Drum Calculators...
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"The Spalding Adding Machine", 1884...
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Replica of the First Mechanical Calculating M...
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Adix Mod. 2, 1903...
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"Certa" Adding Machine...
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F.S. Baldwin's Arithmometer, 1874...
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Tate's Patent Arithmometer, c. 1910...
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"The Centigraph" Adding Machine, 1891...
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Triumph Adding Machine, 1910...
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Woody" and Model A Comptometers...
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Curta Type I Calculator, 1950...
