One of three mechanical hand calculators.
Mechanical course and speed calculator, Mk 11A.
Simmonds-Goudime computor
Casio AL 1000 Desk top Electronic Calculator
1965-1970
Schickard Calculator (Replica)
1992
Casio electronic calculator model AL 2000
Dew point calculator
Electronic calculator
1980-1989
Atls circular slide rule by Gilson Slide Rule Company
Wellcome photographic exposure calculator handbook and diary
1937
VISTAMATIC LIGHTNING (POCKET) PAPER CALCULATOR by The Vistascreen Co. Ltd.
Course and speed calculator Mk IIA. HTA(1928) Ltd
1928
Simmonds-Goudime computor
Astrological calculator in slide-rule format
Toshiba Toscal BC-1621 desktop electronic calculator
IME 86-S electronic calculator
1968
Sinclair Oxford Universal Five Function Electronic Pocket Calculator with memory
1975
Unicom 202/SR Electronic Pocket Calculator
1974
Hanimex pocket electronic calculator
Sharp EL-512 scientific calculator
Burroughs EA2000/EA2101 printing calculator
Griffin's Combined Exposure and Development Calculator
Watkins' Temperature Coefficient Calculator
"Wellcome" Exposure Calculator
Hewlett Packard HP 46 electronic desktop printing calculator, c. 1973.
1973
Olivetti Logos 41 printing calculator
An instrument for obtaining the correction of lunar distances from the Sun
1850-1858
Circular calculator - computer bombing angle Mk 2.
Circular calculator, bombing angle computer, Mk1.
Course and Speed calculator
Circular VT (variable timing) fuze setting calculator
Airborne photographic exposure calculator
One of three mechanical hand calculators.
1930-1940
Mechanical aircraft course calculator from Germany
Fuller calculator
Collection of three mechanical hand calculators.
1930-1940
A trigonometrical calculator, British, 1826-1842
1826-1842
Sectioned Sinclair Executive pocket calculator
1972
Sinclair Cambridge pocket calculator with case and original packaging
IME 84 electronic calculator with auxiliary memory and handbook
Electronic Pocket Calculator by Sharp
1980
Simmonds-Goudime computor
Program cards for Hewlett Packard 9810A desktop calculator
1971
Casio electronic calculator model AS-B, c.1975
Wang 700B Desktop Scientific Electronic Calculator
1975
NCM Busicom 161 electronic calculator
1970/1
Texas Instruments Programmable 59 electronic calculator
1977
Calculator for determining voltage
