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Curta Type II.jpg - Jailbird
HP 9100A Calculator 1968.jpg - Swtpc6800
HP 9100A Calculator 1968 front.jpg - Swtpc6800
Olivetti Programma 101 (2).jpg - Arosio Stefano
Abacus Display at the Computer History Museum.jpg - Flickr upload bot
Lord's Calculator 1880 at CHM.jpg - Tomwsulcer
Schickard Calculator replica at CHM.jpg - Tomwsulcer
Felix Arithmometer, USSR, ca. 1932 at CHM.jpg - Tomwsulcer
Burroughs Adding and Listing machine 1912 at CHM.jpg - Tomwsulcer
Anita electronic calculator at CHM.jpg - Tomwsulcer
Friden SRQ-10 calculator at CHM.jpg - Tomwsulcer
Olivetti Programma 101 calculating machine at CHM.jpg - Tomwsulcer
Pascaline (1642, France, replica in c. 1980) - Computer History Museum (2007-11-10 22.52.30 by Carlo Nardone).jpg - Clusternote
Schickard Calculator (1623, Holland, replica in c. 1990) - Computer History Museum (2007-11-10 22.52.58 by Carlo Nardone).jpg - Clusternote
Lehmer sieves (1936) - Computer History Museum (2007-11-10 22.53.28 by Carlo Nardone).jpg - Clusternote
Babbage Analytical Engine Plan 1840 CHM.agr.jpg - ArnoldReinhold
Electronic Abacus? (439313693).jpg - SNAAAAKE!!
Fowler's Calculator (2102323829).jpg - Meisam
Fowler's Calculator (2103057744).jpg - Meisam
Boucher's Calculator (2102323383).jpg - Meisam
Curta Mechanical Calculator at CHM (7995215541).jpg - Meisam
Soroban at the CHM (6898706115).jpg - Meisam
Odhner Calculator (5900042847).jpg - Meisam
HP Calculator Watch (411109136).jpg - Meisam
そろばん ー Computer History Museum (30750141091).jpg - Meisam
ネイピアの骨 ー Computer History Museum (30750142451).jpg - Meisam
ネイピアの骨 ー Computer History Museum (30750144021).jpg - Meisam
CHM Artifacts (3301513984).jpg - Meisam
CHM Artifacts Commodore AL-1000 calculator (3301474926).jpg - Meisam
CHM Artifacts (3300594027).jpg - Meisam
CHM Artifacts (3301347224).jpg - Meisam
CHM Artifacts (3249194399).jpg - Meisam
CHM Artifacts Pascaline calculator (2632674049).jpg - Meisam
CHM Artifacts HP-01 (2289518022).jpg - Meisam
Computer History Museum (4359355267).jpg - Meisam
Burroughs calculating machine (4358188715).jpg - Meisam
Computer History Museum (4358132485).jpg - Meisam
Computer History Museum (4145886786).jpg - Meisam
Computer History Museum (4142120504).jpg - Meisam
Computer History Museum (4141366433).jpg - Meisam
Computer History Museum (2322687811).jpg - Meisam
Computer History Museum (3013261505).jpg - Meisam
Computer History Museum (2665561664).jpg - Meisam
Computer History Museum (2665560754).jpg - Meisam
Computer History Museum (2664738623).jpg - Meisam
Computer History Museum (2665561080).jpg - Meisam
Computer History Museum (2665560446).jpg - Meisam
Computer History Museum (2664736873).jpg - Meisam
Computer History Museum (2664736595).jpg - Meisam
Computer History Museum (2665559252).jpg - Meisam
Sieve (2665559632).jpg - Meisam
Computer History Museum (2665558902).jpg - Meisam
Computer History Museum (2664735235).jpg - Meisam
Computer History Museum (2665558416).jpg - Meisam
Computer History Museum (2664734441).jpg - Meisam
Computer History Museum (2665557552).jpg - Meisam
Computer History Museum (2665558122).jpg - Meisam
Computer History Museum (2322839911).jpg - Meisam
Abacus (469411480).jpg - Meisam
Millionaire Calculator (469409988).jpg - Meisam
Computer History Museum P1020802 (313520921).jpg - Meisam
Computer History Museum P1020801 (313520683).jpg - Meisam
Computer History Museum P1020800 (313520474).jpg - Meisam
Computer History Museum P1020799 (313520269).jpg - Meisam
Computer History Museum P1020798 (313520036).jpg - Meisam
Computer History Museum P1020797 (313519779).jpg - Meisam
Computer History Museum P1020791 (313519475).jpg - Meisam
Schicard Calculator, Computer History Museum, Mountain View, California, USA (49501286108).jpg - Pigsonthewing
Curta Calculator, 1950-1960s, Computer History Museum.jpg - The wub
Napier's Bones circa 1700, Computer History Museum.jpg - The wub
Friden SRQ-10 calculator, 1962, Computer History Museum.jpg - The wub
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