Telescope by Galileo (replica)
1610; 1923
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Mousetrap Camera
1834-1836
National Diesel Engine
1928
Barber-Colman knotter
circa 1925
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Marconi-Sykes magnetophone
1923
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
Baird Phonovision disc, 1927-1928
1927-1928
Freud electronic laughing ball
1990-96
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Replica of the first Morse telegraph, 1835
1934
Roving frame
1927
Elm Street Mill Cross-Compound Steam Engine
1926
Model steam locomotive LMS 'Royal Scot'
1927
Framed poster advocating vaccination against smallpox
1923
Primax moving iron loudspeaker, 1924-1927
1924-1927
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
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
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
Addac adding machine
1926
Marconi-Sykes Magnetophone microphone
1923
Working Model locomotive
1922
Novelty model
1955; 1830
Vaccination set, London, England, 1925-1928
1925-1928
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
Infant death rate and income
1926-1928
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Demonstration radio receiver
1926
Chain of Office
1927
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
Burndept mark IV tuner with glass back, 1922-1923
1922-1923
Self-winding wristwatch by John Harwood
1928
Mullard pure music cone loud speaker
1928
Radio tuning coil No. 200, 1922-1923
1922-1923
Loaded submarine telegraph cable, 1926
1926