Babbage (Charles).- Mr Babbage's calculating machine, Edinburgh, 1834.

NO RESERVE Babbage (Charles).- Mr Babbage's calculating machine, in number 134 of Chambers Edinburgh Journal, within a complete vol.III of the publication, some spotting / mostly light foxing, mostly

BABBAGE CHARLES: (1791-1871) English Polymath, a mathematician, philosopher & inventor who originated the concept of a digital programmable computer. A.L.S., Mr Babbage, in the third person, one page,

Pioneering British mathematician and mechanical engineer (1791-1871) whose Difference Engine and Analytical Engine are generally acknowledged as the first programmable computers. Signed book: On the E

1905 Baldwin calculating machine, Very good condition, same pcs as National Museum of American History. 10"1/2 x 7" x 7"

Adimul Calculating Machine, 1913 onwards Adix Company Pallweber & Bordt, Mannheim, Germany. Variant 2, serial no. 961, switching latch column adder with 2-row numeric keypad and eleventh key for carri

'"The Millionaire" Calculating Machine, 1918 Rare Swiss electric calculating machine for all 4 basic arithmetic operations, by Otto Steiger, St. Gallen, Switzerland. Based on the design of Leon Bollé

"The Millionaire" Calculating Machine, c. 1900 Serial no. 288, rare calculating machine for all 4 basic arithmetic operations, by Otto Steiger, St. Gallen, Switzerland, based on the design of Leon Bol

Omega Art-Nouveau Calculating Machine, 1904 Präzisions-Maschinenfabrik Justin Wilhelm Bamberger & Co. in Munich. German patent no. 195509, two-part calculating aid consisting of a wood case with

"Kuli" Calculating Machine, 1909 Very attractive and extremely rare German calculating machine for all four arithmetical operations! Serial no. 1111! - With original wooden case. - A superb collector

Twin Marchant Calculating Machine, c. 1942 Consisting of 2 Marchant XL spoked-wheel calculating machines by Marchant Calculating Machine Co, USA, assembled in England and distributed by Block & Anders

The Millionaire Calculating Machine, 1895 Constructor: Otto Steiger, St. Gallen, after Leon Bollée's invention, manufacturer: Hans W. Egli, Zurich, Switzerland. Early model of the famous calcula

Kuli Calculating Machine, 1909 Very attractive and extremely rare German calculating machine for all 4 arithmetical operations! Low serial no. 238! – No key top for "2". With original wooden case. �

Kuli Calculating Machine, 1913 onwards Adix Company Pallweber & Bordt, Mannheim, Germany. Variant 1, serial no. 598, switching latch column adder with 2-row numeric keypad. Multiplications are possibl

Alpina Calculating Machine, 1961 Alpina-Werke in Kaufbeuren, Germany. No. 6887, rare and final model of the stepped-drum calculator, with scarce base, good original condition. Serial no. 6887. - Very

"Kuli" Calculating Machine, 1909 Very attractive and extremely rare German calculating machine for all 4 arithmetical operations! Low serial no. 579! – A superb collector's item and a spectacular ex

XxX ('X multiplied by X') Calculating Machine, 1906 onwards By Seidel & Naumann, Dresden. Stepped-drum machine with setting slides, early serial no. 571, 8, 7 and 12 digits. - Literature: Martin, p.

Swiss "Conto" Model C Calculating Machine, 1912 Manufacturer: "Carl Landolt Rechenmaschinen Thalwil b/Zürich", Switzerland. Spoked-wheel 8-digit adding machine, in brass case, original casket. A rar

"Kuli" Calculating Machine, 1909 Very attractive and extremely rare German calculating machine for all four arithmetical operations! Low serial no. 806! – With original manual and wood case. – A

XxX ('X multiplied by X') Calculating Machine, 1906 onwards Seidel & Naumann, Dresden. Early serial no. 741, stepped-drum machine with setting slides, 9 input sliders, 8-digit revolution counter, 13-d

3 Stepped-Drum Calculating Machines 1) "Archimedes Mod. C2", Reinhold Pöthig, Glashütte, Saxony, no. 5431, c. 1920, four-species machine, with 10 setting slides, 8-digit revolution and 13-di

6 Spoked Wheel Calculating Machines 1) Brunsviga, model 13, serial no. 174993, 10, 8 and 13 digits, working, c. 1930. - 2) Thales, model AE, 10, 8 and 13 digits, working, c. 1935. - 3) Hannovera, mod

4 Spoked-Wheel Calculating Machines and a Demonstration Model 1) Rema I, 1914 onwards, Braunschweiger Rechen­maschinenfabrik Rema GmbH, serial no. 4340, with 9, 8 and 13 digits, with wood base an

13 Calculating Machines 1) Calco, c. 1922, spoked-wheel calculator by Nordisk Regnemaskinefabrik, Danmark, 9, 8 and 13 digits, missing crank, mechanism sticks. - 2) Contex model A, 1945 onwards, Danis

2 Comptometer Calculating Machines and a Share 1) Comptometer model No. 1 with mahogany body, 1887, Felt & Tarrent, Chicago, no. 3954, first model, 8-digit fast adding system and direct drive, in orig