2 Calculating Watches 1) "Calculimetre", c. 1875. Patented French logarithmic device by G. Charpentier. Made by Tavernier – Gravet, Paris. 2-sided...

"Curta Type II" (Grey), 1948 Excellent condition! With original bakelite case and Dutch instruction manual. Serial no. 553780. – Very desirable! C...

Universal Adder, 1904 Very attractive German adding machine with beautiful Art-Nouveau design from the turn of the century! Made by Justin W. Bamb...

"Kuli" Calculating Machine, 1909 Very attractive and extremely rare German calculating machine for all 4 arithmetical operations! Low serial no. 4...

3 Disc Calculators 1) "The Adall Calculator" with original case, pen and instructions. – 2) "Addometer", with pen and manual copy. – And: 3) "The ...

Logarithmic Calculating Drum, c. 1930 With rare scroll device on wooden base, base 57 cm/ 22 ½ in. wide. Made in Switzerland by Daemen-Schmid, Zur...

"Demos II", 1923 Rare Swiss calculator by Theo Muggli, Zurich. Condition: (3/2) "Demos II", 1923 Schweizerische Vierspezies-Rechenmaschine mit St...

"Millionär" Calculator, 1895 Early model of the famous calculating machine, in original wooden case, with serial no. 2083. – A very rare, decorati...

"Brunsviga Patent" and "Doppel-Brunsviga" 13 Z 1) "Brunsviga Patent", c. 1910. – And: 2) "Doppel-Brunsviga 13 Z", 1932. Rare duplex machine for sp...

Odhner's Arithmometer, c. 1900 1) Rare Russian spokewheel model from the legendary St. Petersburg production by Swedish W. Odhner. Serial no. 6153...

Collection of 8 Spokewheel Calculating Machines 1) "Iris". – 2) Melitta Mod. 16. – 3) Ropel. – 4) Remington Rand Mod. R 50 (Walther). – 5) Sigma M...

6 Pocket Calculators 1) "Seidel & Naumann, Dresden" chain adder, c. 1910 – 2) Ditto, as cut model. – 3) Comptator, 1893. – 4) Golden Gem, 1907. – ...

Dr. Roth Calculator with Direct Display, 1841 Early 8-disc adding machine in ruler-form by Dr. Didier Roth, Paris. With full tens transfer. Settin...

World's 1st Mechanical Calculating Machine by Wilhelm Schickard of 1623 Replica by Dutch machinist Peter Roubos. Size: 10 ¼ x 12 ½ in. – Literatur...

7 Calculating Machines 1) Busicom HL-21. – 2) Feliks. – 3) Mercedes-Melitta, serial no. 445. – 4) Brunsviga Mod. 20. – 5) Thales AR. – 6) Original...

3 Calculating Machines 1) Doppel-Brunsviga 13 Z18, 1932. Twin spokewheel calculating machine. Rare duplex machine for special calculations in surv...

"Ideal" Calculator, c. 1910 Export model of the "Archimedes Mod. A". Manual German brass stepped drum calculating machine for all 4 arithmetical o...

Collection of 9 Calculating Machines 1) Thales Mod. M. – 2) Odhner Mod. 14. – 3) Facit S. – 4) Walther RM. – 5) Brunsviga Nova 13Z. – 6) Facit, se...

Arithmomètre de Thomas de Colmar (Boulle), c. 1852 Ornately decorated deluxe model of the very first calculating machine produced in series by Tho...

The Adding Machine of Pierre Fardoil, c. 1700 Very early machine for adding and subtracting numbers from 0-100 in the shape of an astrolabe. The ...

"Hagelin B-21" Cyper Machine, 1927 onwards Manufactured by AB Cryptograph, Sweden, mechanically-operated, keyboard-controlled, 4 rotors, lamp pane...

"Cryptograph" Cypher Machine by Sir Charles Wheatstone, 1877 onwards Manufactured by L.M. Ericsson & Co., Stockholm, polyalphabetic mechanical poc...

Transvertex HC-9 Cypher Machine, c. 1955 Manufactured by AB Transvertex, Stockholm, used by the Swedish Army, similar to Hagelin M-209, but uses a...

Telephone Cyphering Device, c. 1980 Model CD1/CR-80, manufactured by Mont Edison, Italy, "Unita Criptofonica", electronically operated, metal case...

Czech Transceiver by Tesla, c. 1950 Communication transceiver Model VXV 050, with base station VXW 080 (power supply with linear amplifier) and me...

Ciphering Machine Enigma K-Model with Additional Lamp Panel, c. 1939 Manufactured by "Chiffriermaschinen-Ges. Heimsoeth und Rinke, Berlin", serial...

Cryptographic Equipment "SG-41" (Nickname: "Hitler's Mill"), 1944 Wanderer-Werke AG, Chemnitz. Exceptionally rare German cypher machine, successor...

"Enigma M4" Cypher Machine, c. 1942 4-rotor naval Enigma machine, no. M 4609, by Chiffriermaschinengesellschaft Heimsoeth und Rinke, Berlin ("jla...

MITS Altair 8800, 1974 The Altair was the first personal computer in the world to be offered in large quantities and is widely considered to be th...

"SOL-20" by Processor Technology, 1976 The "SOL" was developed by Bob Marsh, Lee Felsenstein and Gordon French. Bob founded his company, Processor...

Apple Lisa 2/5, 1984 This was the second, technically revised version of the first personal computer with a GUI (Graphical User Interface) from Ap...

Apple III, 1980 This Apple III should have been the successor to the legendary Apple II in 1980, however it became the young company's first signi...

NeXT Cube, 1988 After leaving the Apple Inc. in 1985, Steve Jobs founded "NeXT" and developed the NeXT computer, a high-end workstation. The opera...

"MAC – Mechanical Analogue Computer" for Flight Simulation, 1958 Manufactured by Air Trainers Link Ltd., Aylesbury, England. World's 1st tape-oper...

IMSAI 8080, 1975 This was a direct clone of the very successful 1st personal computer, the MITS Altair 8800. The IMS company improved the design o...

L.M. Ericsson Skeleton Telephone, c. 1900 Signed "Rikstelefon", handset signed "K. Telegrafverkets Verkstad", double-bell, lightning protection, a...

Complete German Morse Telegraph System, c. 1900 Consisting of: C. Lorenz (Berlin) ink writer telegraph, Morse key with sprung contacts; F. Schucha...

Prussian Telegraph Receiver, c. 1875 Ink writer, signed "W. Gurtl, Berlin", no. 1601, spring-driven motor, on ground plate with drawer and paper s...

Demonstration Model Telegraph, c. 1920 Ink writer and Morse key, clockwork, on ground plate, 10 5/8 x 4 ¾ in. Condition: (3/2–3) Telegraphen-Lehr...

Telegraph Station Equipment, c. 1900 1) Plug-in cross table, with 9 and 10 bars, 10 plugs, brass and mahogany, 7 x 8 in. – 2) Double-pole switch. ...

German Telegraph System by Siemens & Halske, c. 1880 Used by the German Imperial Railway; comprising ink writer no. 77714, Morse key, relay, milli...

Electric Fire Telegraph, c. 1910 Based on design by Siemens & Halske. An easy-to-operate piece of emergency communication equipment, for the conne...

Telegraph Station Equipment, c. 1900 1) Plug-in cross table, with earthed ground bar, 2 x 16 further bars, 17 plugs, brass and mahogany, size 12 ½...

Telegraph System by The Prussian Administration, c. 1880 Consisting of: Ink writer telegraph by Akt. Ges. Mixt & Genest, Berlin, no. 1934; W. Gurt...

Fultograph Image-Receiving Device, c. 1930 Manufactured by Robert Karst, Berlin. Serial no. 163, for pictures of 3 ½ x 4 ¾ in., clockwork mechanis...

Beautiful Original Skeleton Telephone by "L.M. Ericsson", c. 1900 Complete! – Highly desirable collector's item! Condition: (3+/–) Skelett-Teleph...

Montblanc "Alexandre Dumas" Ballpoint Pen, 1996 Limited edition ballpoint pen from the Writers Edition series, marbled resin body, gilded fittings...

Montblanc "Jules Verne" Writing Set, 2003 Limited Writers Edition 3-piece set; comprising fountain pen, ballpoint pen and mechanical pencil, round...

Montblanc "Creation Lalique" Desk Set, 1991 Limited edition no. 2131/4810, enameled Montblanc stars, crystal glass, sterling silver fittings. With...

Montblanc "Oscar Wilde" Writing Set, 1994 Limited Writers Edition 3-piece set. Including fountain pen, ballpoint pen and mechanical pencil, with r...

Montblanc "Agatha Christie" Ballpoint Pen, 1993 Limited Writers Edition, black resin body, sterling silver mounts, snake clip with ruby eyes, in b...

Montblanc "Lorenzo de' Medici" Fountain Pen, 1992 Limited edition fountain pen from the Patron of Arts series, number 2066/4810, Viennese-style en...

Pencil Sharpener by T.A. Henderson, 1886 This is the only one known model of the Thomas Alexander Henderson pencil pointer of Natchez, MS, patente...

Pencil Sharpener by E.S. Stimpson, 1884 Early cast-iron machine, patented in the U.S. under no. 304371 from Sept. 2, 1884 for Edward S. Stimpson, ...

"Dictaphone" Type X Dictating Machine, c. 1915 Electric motor drive, with 17 Ediphone and Dictaphone cylinders, horn added. Condition: (3/–) Dikt...

"The Dictaphone" Dictating Machine, c. 1930 American dictating and listening machine, with electric motor drive and foot switch, missing horn. Con...

Complete Dictaphone Dictating System, c. 1915 Manufactured by Columbia Phonograph Co., New York, dictating and reproducing machine, electrically d...

Gestetner's Neo-Cyclostyle Duplicating Machine, c. 1890 With pen, some ink, instructions, folder and a misshappen roller, nice overall condition. ...

2 Duplicating and Copying Machines 1) "Gestetner's Diaphragm Duplicator No. 70", late 19th century, similar to an Edison Mimeograph. – And: 2) "Pe...

2 Duplicating Machines 1) "Rotary Neostyle Duplicator", with tin cover. – And: 2) "Brüco Solido". Condition: (3/3) 2 Vervielfältiger 1) "Rotary N...