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
Model of the "Planet" Locomotive
1830 (original); 1967 (model)
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
BBC 'Bijou' Crystal Set Receiver Type 6
1923-07
Experimental television receiver used by JL Baird in demonstration, made 1925-1926
1925-1926
Petrol locomotive
1925
Freud electronic laughing ball
1990-96
McKay artificial left arm
1920
Replica of the first Morse telegraph, 1835
1934
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Elm Street Mill Cross-Compound Steam Engine
1926
Roving frame
1927
Wooden prosthetic hand with rigid fingers
circa 1920
Model steam locomotive LMS 'Royal Scot'
1927
Framed poster advocating vaccination against smallpox
1923
Model of a pendulum clock based on Galileo's design
1921
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Amplion loud speaker with wooden horn, 1925
1925
Three-valve radio receiver, 1922-1925
1922-1925
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Primax moving iron loudspeaker, 1924-1927
1924-1927
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Gold amulet in the form of a cobra
2000-100 BCE
Locomotive worksplate
1920
Earth thermometer with bent stem, c. 1925.
1925
Crystal radio receiver
circa 1923
Savoy Hill 'Meat Safe' microphone stand
1923
Addac adding machine
1926
Neolithic flint scraper
4000-2001 BCE
Working Model locomotive
1922
Novelty model
1955; 1830
Marconi-Sykes Magnetophone microphone
1923
Portable thermometer screen
1925
Popular Wireless no. 1 vol. 1, 1922
1922
Radio Times volume 1 No. 1, 1923
1923
Straight horn loudspeaker, 1921-1926
1921-1926
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Burroughs Class 5 hand operated mechanical adding machine with ten registers
1920-1925
Chain of Office
1927
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
Demonstration radio receiver
1926
Burndept mark IV tuner with glass back, 1922-1923
1922-1923
Wrapping block
circa 1920