A trigonometrical calculator, British, 1826-1842
1826-1842
Griffin's Combined Exposure and Development Calculator
"Wellcome" Exposure Calculator
Watkins' Temperature Coefficient Calculator
Dew point calculator
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
Circular calculator, bombing angle computer, Mk1.
Fuller calculator
Circular VT (variable timing) fuze setting calculator
Airborne photographic exposure calculator
An instrument for obtaining the correction of lunar distances from the Sun
1850-1858
Atls circular slide rule by Gilson Slide Rule Company
Casio AL 1000 Desk top Electronic Calculator
1965-1970
Schickard Calculator (Replica)
1992
Casio electronic calculator model AL 2000
Electronic calculator
1980-1989
Course and speed calculator Mk IIA. HTA(1928) Ltd
1928
Simmonds-Goudime computor
VISTAMATIC LIGHTNING (POCKET) PAPER CALCULATOR by The Vistascreen Co. Ltd.
Astrological calculator in slide-rule format
Sectioned Sinclair Executive pocket calculator
1972
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
IME 86-S electronic calculator
1968
Hewlett Packard HP 46 electronic desktop printing calculator, c. 1973.
1973
Olivetti Logos 41 printing calculator
Sinclair Cambridge pocket calculator with case and original packaging
Wellcome photographic exposure calculator handbook and diary
1937
Machine for finding the roots of cubic equations both real and impossible
Calculator for determining voltage
Casio electronic calculator model AS-B, c.1975
"Le Posographe" Exposure Calculator
Paragon Exposure Calculator
1910
"Elsimate" solar cell calculator
Sinclair "Cambridge Programmable" pocket electronic calculator
1977
Rockwell 24RD-II pocket electronic calculator
National Semiconductor 852 pocket electronic calculator
Sinclair scientific Electronic Pocket Calculator
1974
Sharp Compet model CS-10A electronic calculator
NCM Busicom 161 electronic calculator
1970/1
Texas Instruments Programmable 59 electronic calculator
1977
