Telescope by Galileo (replica)
1610; 1923
Beyer-Garratt South African Railways Locomotive
1929
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Mousetrap Camera
1834-1836
Radium teletherapy apparatus, the radium 'bomb'
1925-1930
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
Post mortem table ceramic
1921-1930
Freud electronic laughing ball
1990-96
Replica of the first Morse telegraph, 1835
1934
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Siemens Neophone telephone, 1929
1929
Elm Street Mill Cross-Compound Steam Engine
1926
Model steam locomotive LMS 'Royal Scot'
1927
Mineral wagon used at Stanton Ironworks
1931
Framed poster advocating vaccination against smallpox
1923
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Model of a pendulum clock based on Galileo's design
1921
Amplion loud speaker with wooden horn, 1925
1925
Gold amulet in the form of a cobra
2000-100 BCE
Three-valve radio receiver, 1922-1925
1922-1925
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Primax moving iron loudspeaker, 1924-1927
1924-1927
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
Savoy Hill 'Meat Safe' microphone stand
1923
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
Eight-day astronomical longcase clock by Thomas Vickery
1931
"Racial" brand cervical cap
1921-1931
Addac adding machine
1926
Marconi-Reisz 'Marble' Microphone
1927-30
Working Model locomotive
1922
Marconi-Sykes Magnetophone microphone
1923
Novelty model
1955; 1830
Samples of cinchona bark
1930-1931
Thomas Lewis’ electrocardiograph
1930
Novelty crystal radio set, 1925-1930
1925-1930
Vaccination set, London, England, 1925-1928
1925-1928
Portable thermometer screen
1925
Selector super portable broadcast receiver, 1925-1930
1925-1930
Radio Times volume 1 No. 1, 1923
1923
Medal commemorating first free balloon stratospheric flight of Professor Auguste Piccard and Dr. Paul Kipfer
1931
Popular Wireless no. 1 vol. 1, 1922
1922
Straight horn loudspeaker, 1921-1926
1921-1926
Infant death rate and income
1926-1928