Electronic calculator
1980-1989
Circular calculator - computer bombing angle Mk 2.
Course and Speed calculator
Collection of three mechanical hand calculators.
1930-1940
Mechanical aircraft course calculator from Germany
Airborne photographic exposure calculator
Dew point calculator
Course and speed calculator Mk IIA. HTA(1928) Ltd
1928
Simmonds-Goudime computor
VISTAMATIC LIGHTNING (POCKET) PAPER CALCULATOR by The Vistascreen Co. Ltd.
Unicom 202/SR Electronic Pocket Calculator
1974
Sinclair Oxford Universal Five Function Electronic Pocket Calculator with memory
1975
Sharp EL-512 scientific calculator
Toshiba Toscal BC-1621 desktop electronic calculator
Hanimex pocket electronic calculator
Burroughs EA2000/EA2101 printing calculator
Hewlett Packard HP 46 electronic desktop printing calculator, c. 1973.
1973
Olivetti Logos 41 printing calculator
Casio AL 1000 Desk top Electronic Calculator
1965-1970
Schickard Calculator (Replica)
1992
Casio electronic calculator model AL 2000
Wellcome photographic exposure calculator handbook and diary
1937
Griffin's Combined Exposure and Development Calculator
"Wellcome" Exposure Calculator
Watkins' Temperature Coefficient Calculator
Circular calculator, bombing angle computer, Mk1.
Fuller calculator
Circular VT (variable timing) fuze setting calculator
Sinclair Cambridge pocket calculator with case and original packaging
Astrological calculator in slide-rule format
An instrument for obtaining the correction of lunar distances from the Sun
1850-1858
A trigonometrical calculator, British, 1826-1842
1826-1842
Sectioned Sinclair Executive pocket calculator
1972
IME 86-S electronic calculator
1968
Atls circular slide rule by Gilson Slide Rule Company
Sharp Compet model CS-10A electronic calculator
NCM Busicom 161 electronic calculator
1970/1
Texas Instruments Programmable 59 electronic calculator
1977
Calculator for determining voltage
Machine for finding the roots of cubic equations both real and impossible
"Avionaut" aeronautical course and distance calculator
Addison-Luard Course and Wind Calculator type D
1920s
Simmonds-Goudime computor
Simmonds-Goudime computor
Simmonds-Goudime computor
Brass astronomical calculator
1848-1852
Lloyds Accumatic TM100 electronic calculator
"Elsimate" solar cell calculator
Sinclair "Cambridge Programmable" pocket electronic calculator
1977