Seeger dry-air siphon refrigerator, c. 1900.
1880-1920
Addac adding machine
1926
Shelvador electric compression domestic refrigerator, c. 1934-1935.
1930-1940
National Cash Register co model 422X cash register
circa 1910
Synchronous mains electric clock of the self-starting type
1934
Comptometer, manual operation
1930-1940
Burroughs Class 5 hand operated mechanical adding machine with ten registers
1920-1925
Burroughs hand operated adding and listing machine
1917
Early model wooden-case comptometer by Felt and Tarrant Manufacturing Co.
1887-1903
Goddard combustion chamber top
circa 1927
Goddard rocket fuel tank
circa 1930
"Ingersoll" wrist watch with leather strap
1915
London & North Eastern Railway steam locomotive 'Mallard'
1938
Coronation Class Livery Sample
1938
Light-bulb, filament, carbon
About 1890
horological rubber
1850-1900
Papier mache model of human eye
1913
Shade guide for "Solarex" porcelain teeth
1920-1935
Anti-mosquito spray gun
1914-1918
Ceramic pot lid for cherry tooth paste
1870-1910
Ceramic pot lid for cherry tooth paste
1860-1910
Marey sphygmograph and case
1857-1870
Fechner's double sound pendulum for testing aural discrimination
1898-1908
Dissecting microscope used by Sir Ronald Ross
1890-1910
Early binaural stethoscope
1861-1866
Pocket-sized obstetrical forceps
1864-1900
Model of Grew's locomotive for ice
circa 1861
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Stock Exchange automatic telegraph, 1872-1880
1872-1880
Home made 30-line televisor, 1934
1934
De Forest syntoniser, 1902-1907
1902-1907
Magnetic key, 1850-1870
1850-1870
RCA 955 Acorn UFH triode vale (McVitie Weston valve collection), 1935
1935
Mazda QP.240 battery double output pentode valve (McVitie Weston valve collection), 1935
1935
Siemens & Halske AG radio valve, 1884-1936
1884-1936
Ring transformer, 1892
1892
Two-valve short wave radio - telephonic receiver, 1927
1927
Replica of the first Morse telegraph, 1835
1934
Strowger automatic telephone, 1901-1910
1901-1910
Impulse sender (dial), 1915
1915
Strowger calling dial, 1906
1906
E.S.75 wireless valve, 1883-1930
1883-1930
Mullard EF9 VM RF pentode valve (McVitie Weston valve collection), 1939
1939
Loud speaker valve type L.S.5. W/T, 1923
1923
Mullard T.H.4 radio valve, 1936
1936
Siemens and Halske's ABC Telegraph used in Russia
1850-1897
Bell telephone, mahogany case, 1878
1878
Rubber vault cap
1938-1940
Princess Elizabeth
circa 1938