Muldivo 'Mentor' calculator model WSR, 160 c1955.
circa 1955
IME - 86 electronic calculating machine
Calculating machine for lathe work
1920-1930
Underwood Sundstrand printing calculator with typewriter platen
1930-1940
`Precisa' desk top calculator, c. 1945
1945
Contex 30 calculator with handbook
1970-1975
Callender cable calculating machine
circa 1904
ADM Teacher
1950-1970
Contex-10 manual calculating machine
1950-1960
Contex-55 electromechanical calculating machine
1950-1960
Conto adding machine for eight figures
1905-1910
Nippon mechanical calculator model HL-21
1960-1970
Reuter's multiplying and dividing machine
1908-1920
Adding machine "The Adder" no. 5766
Contex 2 calculator
1970-1975
Olivetti Divisumma Tetractys. Superautomatic printing calculator with two registers
1962
Anita electronic calculating machine, model LT4
Heureka adding machine, no.684
1907-1920
Contex 9 figure adding machine
1945-1955
FACIT electrical calculating machine model ESA-O
1950-1955
Comptometer by Bell Punch Ltd., Model 993S
1960-1970
Automultiplicateur Eggis
1918-1922
Mear's gas flow calculator.
Mechanical calculator for centre of gravity of Hotspur aircraft
Lipsiaddi adding machine with vendor's plate: Heinrich Daemen
1930-1940
Unitas calculating machine
1900
Anita Mk VIII Electronic Desktop Calculator
circa 1963
Plus Rapid adding machine, standard farthings model
1939
Ultra electromechanical calculating and listing machine by Oerlikon
Calculating machine
1880-1884
Duoelectric S/508144 (electric comptometer)
1955-1965
Adding machine by London Computator Ltd. model 509/D/50
1915-1925
"Sumlock" adding/calculating machine no.912/S/3475
1950
Class 1 Burroughs calculating machine
Two Russion calculating machines: `Contex 2' and `Contex 30'. The first with a handbook
1970-1975
Anita electronic calculating machine 1011.IC.724
"Arithmograph" of Leon Bollee
1895-1900
Calculating machine for bookkeeping
1935