Addac adding machine
1926
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Novelty model
1955; 1830
"Swiftsure" copper posser by the British Vacuum Wsher Co. of Islington
1921
Amplion loud speaker with wooden horn, 1925
1925
Straight horn loudspeaker, 1921-1926
1921-1926
Replica of the first Morse telegraph, 1835
1934
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
Framed poster advocating vaccination against smallpox
1923
Gold amulet in the form of a cobra
2000-100 BCE
Loud speaker valve type L.S.5. W/T, 1923
1923
Demonstration radio receiver
1926
Gecophone broadcast receiver, model B.C 3200, 1924
1924
Tablet Stone, Moretonhampstead & South Devon Railway
1924
model steam locomotive London, Brighton & South Coast Railway
1925
Petrol locomotive
1925
Working Model locomotive
1922
London & North Eastern Railway Steam Locomotive, 'Flying Scotsman'
1923
Portable thermometer screen
1925
Kelvinator electric compression domestic refrigerator no 5534
1926
Earth thermometer with bent stem, c. 1925.
1925
Replica of Liverpool & Manchester Railway 1st Class carriage 'Traveller'
1930 (replica); 1834 (original)
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
model locomotive, London & North Western Railway
1925
Freud electronic laughing ball
1990-96
Main part of Marconi 1.5KW transmitter from 2LO
1922-1925
12"tenon saw by Spear & Jackson
1926
Three-valve radio receiver, 1922-1925
1922-1925
Popular Wireless no. 1 vol. 1, 1922
1922
Savoy Hill 'Meat Safe' microphone stand
1923
Marconi-Sykes magnetophone
1923
V2A Marconiphone receiver (long-range model) , 1922-1924
1922-1924
BBC printing stamp issued to the Willesden Wireless Company
1922-1924
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Card of Authority to use portable receiver, 1922
1922
Radio tuning coil No. 75, 1922-1923
1922-1923
Set concert coils, 1922-1923
1922-1923
Radio tuning coil No. 500, 1922-1923
1922-1923
Radio tuning coil No. 1000, 1922-1923
1922-1923
Burndept mark IV tuner with glass back, 1922-1923
1922-1923
Radio tuning coil No. 750, 1922-1923
1922-1923
Radio tuning coil No. 400, 1922-1923
1922-1923
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Ora wireless receiving triode, 1921
1921
Loaded submarine telegraph cable, 1926
1926