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
Radio tuning coil No. 100, 1922-1923
1922-1923
Radio tuning coil No. 150, 1922-1923
1922-1923
Radio tuning coil No. 200, 1922-1923
1922-1923
Radio tuning coil No. 300, 1922-1923
1922-1923
Ampoule of penicillin
1945
Hospital bed cycle
1946
Papier mache model of human eye
1913
Shade guide for "Solarex" porcelain teeth
1920-1935
Anti-mosquito spray gun
1914-1918
Wooden divination board
1880-1920
Brush used for bathing in public bathhouse
1920-1950
Brush used for bathing in public bathhouse
1920-1950
Nasal speculum
1901-1950
Fechner's double sound pendulum for testing aural discrimination
1898-1908
Dissecting microscope used by Sir Ronald Ross
1890-1910
Bo-Third Rail No D75S
1898
Sugar nippers, 19th century.
1880-1900
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Wooden pillar insulators, 1900-1950
1900-1950
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Filings coherer, glass tube bent into U-shape at one end, 1894-1904
1894-1904
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Coherer with coarse brass turnings, 1894
1894
Filings coherer, glass tube almost of taper shape, 1894-1904
1894-1904
Filings coherer, Lodge-Muirhead system, 1900-1910
1900-1910
Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904
1894-1904
Hertzian receiving resonator, 1890-1894
1890-1894
Filings coherer, Lodge pattern with two wires inserted into bulb at one end, 1894-1904
1894-1904
Home made 30-line televisor, 1934
1934
Rotary convertor, 1900-1950
1900-1950
De Forest syntoniser, 1902-1907
1902-1907
Coherer, narrow-bore glass tube, 1894-1904
1894-1904
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