Collection of three mechanical hand calculators.
1930-1940
IME 84 electronic calculator with auxiliary memory and handbook
Course and speed calculator Mk IIA. HTA(1928) Ltd
1928
Circular calculator, bombing angle computer, Mk1.
Airborne photographic exposure calculator
Course and Speed calculator
Circular VT (variable timing) fuze setting calculator
Mechanical aircraft course calculator from Germany
Fuller calculator
Simmonds-Goudime computor
VISTAMATIC LIGHTNING (POCKET) PAPER CALCULATOR by The Vistascreen Co. Ltd.
Astrological calculator in slide-rule format
Circular calculator - computer bombing angle Mk 2.
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
A trigonometrical calculator, British, 1826-1842
1826-1842
Sinclair Cambridge pocket calculator with case and original packaging
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
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
Dew point calculator
Electronic calculator
1980-1989
Wellcome photographic exposure calculator handbook and diary
1937
"Wellcome" Exposure Calculator
Griffin's Combined Exposure and Development Calculator
Watkins' Temperature Coefficient Calculator
Machine for finding the roots of cubic equations both real and impossible
NCM Busicom 161 electronic calculator
1970/1
Texas Instruments Programmable 59 electronic calculator
1977
Calculator for determining voltage
Canon 161 Electronic calculator
"Avionaut" aeronautical course and distance calculator
Course and distance calculator by C. Plath
1930-1956
Addison-Luard Course and Wind Calculator type D
1920s
Mechanical course and speed calculator, Mk 11A.
Calculator for determining flash burst heights
Prototype unit for TOF (time of fall) calculator model B
True airspeed mechanical circular calculator.
German wind and course calculator.
