Telescope by Galileo (replica)
1610; 1923
'Cat's whisker' Crystal Radio
1920-1925
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Mousetrap Camera
1834-1836
Barber-Colman knotter
circa 1925
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Rolling ball clock by E. Dent and Co
1920
Marconi-Sykes magnetophone
1923
Photographer's 'Birdie'
circa 1920
Petrol locomotive
1925
BBC 'Bijou' Crystal Set Receiver Type 6
1923-07
Experimental television receiver used by JL Baird in demonstration, made 1925-1926
1925-1926
Freud electronic laughing ball
1990-96
McKay artificial left arm
1920
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Replica of the first Morse telegraph, 1835
1934
Elm Street Mill Cross-Compound Steam Engine
1926
Wooden prosthetic hand with rigid fingers
circa 1920
Framed poster advocating vaccination against smallpox
1923
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Amplion loud speaker with wooden horn, 1925
1925
Model of a pendulum clock based on Galileo's design
1921
Gold amulet in the form of a cobra
2000-100 BCE
Savoy Hill 'Meat Safe' microphone stand
1923
Three-valve radio receiver, 1922-1925
1922-1925
Locomotive worksplate
1920
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Neolithic flint scraper
4000-2001 BCE
Crystal radio receiver
circa 1923
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Earth thermometer with bent stem, c. 1925.
1925
Addac adding machine
1926
Marconi-Sykes Magnetophone microphone
1923
Working Model locomotive
1922
Novelty model
1955; 1830
Portable thermometer screen
1925
Radio Times volume 1 No. 1, 1923
1923
Straight horn loudspeaker, 1921-1926
1921-1926
Popular Wireless no. 1 vol. 1, 1922
1922
Burroughs Class 5 hand operated mechanical adding machine with ten registers
1920-1925
Demonstration radio receiver
1926
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
Burndept mark IV tuner with glass back, 1922-1923
1922-1923
Wrapping block
circa 1920
Radio tuning coil No. 200, 1922-1923
1922-1923
Loaded submarine telegraph cable, 1926
1926
Sectioned model steam locomotive boiler
circa 1920
Lap Scales
circa 1920
Bell from Cable Ship 'Faraday', 1923
1923
Child's china tea plate, 1922-1923
1922-1923