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Adding Machine The Acme, c. 1902American stylus-operated disc adder, manufactured in Detroit,
Adding Machine The Acme, c. 1902American stylus-operated disc adder, manufactured in Detroit, heavy cast-iron body, Ø 6 ¾ in., patented March 11. ...
XxX ('X multiplied by X') Keyboard Calculating Machine with Printer, c. 1910By Seidel & Naumann,
XxX ('X multiplied by X') Keyboard Calculating Machine with Printer, c. 1910By Seidel & Naumann, Dresden. Stepped-drum machine with keyboard setti...
Comptograph, c. 1898Printing adding machine, invented and patented by Dorr E. Felt, manufactured
Comptograph, c. 1898Printing adding machine, invented and patented by Dorr E. Felt, manufactured by Felt & Tarrant Mfg. Co., Chicago, first versio...
"Quixsum Fractional Adding Machine Mod. C" Disc Adder, 1924Large manual adder with 4 counting
"Quixsum Fractional Adding Machine Mod. C" Disc Adder, 1924Large manual adder with 4 counting discs for American measure of length ("Fractions", "...
18 Calculating ToolsDisc and rack adders: Bair-Fulton Compilator Calculator No. 8, Bri-Cal Adder,
18 Calculating ToolsDisc and rack adders: Bair-Fulton Compilator Calculator No. 8, Bri-Cal Adder, Pangborn, Midget Adding Machine, Dolland/Adem, A...
The Adder, 1868The first 2-disc brass adder with tens transfer by C.H. Webb, New York. - The early
The Adder, 1868The first 2-disc brass adder with tens transfer by C.H. Webb, New York. - The early model on wood base. US patent: 10 March 1868.Zu...
Calculimetre Calculating Disc, c. 1875Manufacturer: Tavernier - Gravet, Paris. Patented French
Calculimetre Calculating Disc, c. 1875Manufacturer: Tavernier - Gravet, Paris. Patented French logarithmic device by G. Charpentier. Double-sided,...
2 American Disc Adders1) "The Adder", 2-disc adder with tens transfer, C.H. Webb, New York. Nickeled
2 American Disc Adders1) "The Adder", 2-disc adder with tens transfer, C.H. Webb, New York. Nickeled brass, with stylus in original wood case. US ...
Early American Monetary Transaction Table, 1845 (!)Disc with printed scales used for interest
Early American Monetary Transaction Table, 1845 (!)Disc with printed scales used for interest calculations, Ø 12 ¼ in. Invented by William B. Leav...
The "Small" Pocket Calculator, c. 1900Model No. 1, made by G. Small, Boston, with scales at the rim,
The "Small" Pocket Calculator, c. 1900Model No. 1, made by G. Small, Boston, with scales at the rim, top and bottom, Ø only 1 7/8 in.Zustand: (2-3...
4 American Disc Adders1) "Victor Adder", Webb-type, nickeled brass, c. 1900. - 2) "Ray Subtracto-
4 American Disc Adders1) "Victor Adder", Webb-type, nickeled brass, c. 1900. - 2) "Ray Subtracto-Adder", model 2, c. 1918. - 3) "The Standard Desk...
18 Calculating ToolsDisc and rack adders: Bair-Fulton Compilator Calculator No. 11, Addition -
18 Calculating ToolsDisc and rack adders: Bair-Fulton Compilator Calculator No. 11, Addition - Patent Michel Baum, Tom Thumb, Addimult Sumax-E, Qu...
9 Calculating Discs1) The Atlas Calculator, Tavella Sales Co., New York, 10 x 10 in. - 2) The Binary
9 Calculating Discs1) The Atlas Calculator, Tavella Sales Co., New York, 10 x 10 in. - 2) The Binary Slide Rule, USA, Ø 8 ¼ in. - 3) Gilson Slide ...
2 American Adding Machines1) "The Locke Adder", 1901, very attractive American adding machine with
2 American Adding Machines1) "The Locke Adder", 1901, very attractive American adding machine with beautiful Art-Nouveau design from the turn of t...
2 American Adding Machines1) "The Locke Adder", 1901, very attractive American adding machine with
2 American Adding Machines1) "The Locke Adder", 1901, very attractive American adding machine with beautiful Art-Nouveau design from the turn of t...
Curta Type II Calculator (Black), 1955Curt Herzstark, Liechtenstein. With original tin case.
Curta Type II Calculator (Black), 1955Curt Herzstark, Liechtenstein. With original tin case. Serial no. 506095. - Very desirable, working conditio...
Original Patent Model by F.S. Baldwin, 1873US patent no. 138310, patented April 29, 1873, "Lumber
Original Patent Model by F.S. Baldwin, 1873US patent no. 138310, patented April 29, 1873, "Lumber Measures", consisting of a circular brass case, ...
Patent Model by E.L. Bill, 1878This device provided the exchange rate of British-American currency
Patent Model by E.L. Bill, 1878This device provided the exchange rate of British-American currency from pounds and shillings to dollars and cents,...
The Calculus Calculator, 1907American multi-part computing machine for multiplication and division, invented by Adolphus S. Dennis, Cleveland, OH....
Comptometer Model No. 1, 1887The 1st model, with mahogany body, manufactured by Felt & Tarrent,
Comptometer Model No. 1, 1887The 1st model, with mahogany body, manufactured by Felt & Tarrent, Chicago. With 8-digit fast adding system and direc...
Group of Slide Rules1) Keuffel & Esser, model 4059, Student's Slide Rule, 1916. - 2) Faber-Castell, TR3, combination of slide rule and electronic ...
Adders, Slide Rules and Calculating Aids1) La Pythagore. - 2) The Calculator. - 3) 2 x Rebo. - 4)
Adders, Slide Rules and Calculating Aids1) La Pythagore. - 2) The Calculator. - 3) 2 x Rebo. - 4) 4 x Addiator. - 5) Calculateur Universel. - 6) P...
3 American Disc Adders1) "Victor Adder", 2-disc adder with tens transfer, Webb-type, nickeled brass.
3 American Disc Adders1) "Victor Adder", 2-disc adder with tens transfer, Webb-type, nickeled brass. - 2) "Herring's Computing Machine", manufactu...
3 American Disc Adders1) "Lightning Adder", 2-disc adder with tens transfer, Webb-type, nickeled
3 American Disc Adders1) "Lightning Adder", 2-disc adder with tens transfer, Webb-type, nickeled brass. - 2) "Hatfield Adder", serial no. 354, inv...
4 British Calculating and Measuring Instruments1) Slide rule, Dring & Fage, London, boxwood, c.
4 British Calculating and Measuring Instruments1) Slide rule, Dring & Fage, London, boxwood, c. 1865. - 2) Set of 3 threaded rods, measuring up to...
3 Calculating Devices1) Professor Fuller's Slide Rule Calculator, 1921, logarithmic calculating drum
3 Calculating Devices1) Professor Fuller's Slide Rule Calculator, 1921, logarithmic calculating drum by George Fuller, made in England by Stanley,...
3 Adding Machines1) Adix, early version without reset, only addition up to 999, working, in original
3 Adding Machines1) Adix, early version without reset, only addition up to 999, working, in original case, manufactured 1903 onwards. (2-3/2-3) - ...
"Peerless Baby" Calculating Machine, 1910Rare miniature German 4-species stepped-drum calculator
"Peerless Baby" Calculating Machine, 1910Rare miniature German 4-species stepped-drum calculator by Math. Bäuerle, St. Georgen, Black Forest, cast...
"Monopol" Calculating Machine, 1902 onwardsFirst spoked-wheel calculating machine with tens transfer
"Monopol" Calculating Machine, 1902 onwardsFirst spoked-wheel calculating machine with tens transfer in the revolution unit. Manual swing spoked-w...
"Commonwealth" Adding Machine, 1915Serial no. 320, invented by George Browning, manufactured by
"Commonwealth" Adding Machine, 1915Serial no. 320, invented by George Browning, manufactured by Commonwealth Adding Machine Company, Muskegon, Mic...
Morse Pre-Vis Adding Machine, 1915 onwardsAmerican printing adder, made by Morse Adding Machine
Morse Pre-Vis Adding Machine, 1915 onwardsAmerican printing adder, made by Morse Adding Machine Company, Chicago. 9 keys, lever-operated.Zustand: ...
"Millionär" Calculating Machine, 1914Rare Swiss electric calculating machine for all 4 basic
"Millionär" Calculating Machine, 1914Rare Swiss electric calculating machine for all 4 basic arithmetic operations, by Otto Steiger, St. Gallen, S...
6 American Counters, c. 1900-201) Durant model A, Chicago, 5 digits, with bell. - 2) Redington
6 American Counters, c. 1900-201) Durant model A, Chicago, 5 digits, with bell. - 2) Redington Counting Machine, Chicago, 5 digits. - 3) Silver-Ki...
2 German Stepped-Drum Calculators1) Peerless Arithmometer, c. 1904, 4-species calculator by Math.
2 German Stepped-Drum Calculators1) Peerless Arithmometer, c. 1904, 4-species calculator by Math. Bäuerle, St. Georgen, Black Forest, Germany. Ame...
"The Spalding Adding Machine", 1884Early American adding machine by Cyrus G. Spalding, Boston, MA.
"The Spalding Adding Machine", 1884Early American adding machine by Cyrus G. Spalding, Boston, MA. U.S. patents of Jan. 13, 1874 (no. 146407) and ...
Replica of the First Mechanical Calculating Machine, by Wilhelm Schickard, 1623Made by Dutch
Replica of the First Mechanical Calculating Machine, by Wilhelm Schickard, 1623Made by Dutch machinist Peter Roubos after the description of the m...
Adix Mod. 2, 1903Attractive 3-digit adding machine with 9 keys and release lever by Pallweber &
Adix Mod. 2, 1903Attractive 3-digit adding machine with 9 keys and release lever by Pallweber & Bordt, Mannheim, Germany. In original velvet-lined...
"Certa" Adding MachineExtraordinarily rare model of the "Adix" of 1903, with the same construction, with original velvet case. - Serial no. 3774. ...
F.S. Baldwin's Arithmometer, 1874Calculating machine for adding and subtraction a column of digits, U.S. patent 153522, July 28, 1874. Semi-circul...
Tate's Patent Arithmometer, c. 1910C. & E. Layton, London. Rare English stepped-drum Arithmometer
Tate's Patent Arithmometer, c. 1910C. & E. Layton, London. Rare English stepped-drum Arithmometer for all four mathematical functions, 8, 9 and 16...
"The Centigraph" Adding Machine, 1891No. 1687, extraordinarily rare American column adding machine
"The Centigraph" Adding Machine, 1891No. 1687, extraordinarily rare American column adding machine by A.E. Shattuck, San Francisco, CA, U.S. paten...
Triumph Adding Machine, 1910Manufactured by Triumph Adding Machine Co., Brooklyn, N.Y., USA.
Triumph Adding Machine, 1910Manufactured by Triumph Adding Machine Co., Brooklyn, N.Y., USA. Serial no. 1067. Highly interesting American adding m...
Woody" and Model A Comptometers2 American adding machines. 1) Comptometer, 1887, the 1st model
Woody" and Model A Comptometers2 American adding machines. 1) Comptometer, 1887, the 1st model with mahogany body. Manufactured by Felt & Tarrent,...
Curta Type I Calculator, 1950Curt Herzstark, Liechtenstein. With original tin case. Serial no. 5396.
Curta Type I Calculator, 1950Curt Herzstark, Liechtenstein. With original tin case. Serial no. 5396. With the notable features of early models: ro...
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