Telephone crossbar switch, Swedish Ericsson, 1921
1921
Replica of the first Morse telegraph, 1835
1934
Loud speaker valve type L.S.5. W/T, 1923
1923
Radio tuning coil No. 150, 1922-1923
1922-1923
Radio tuning coil No. 100, 1922-1923
1922-1923
Radio tuning coil No. 300, 1922-1923
1922-1923
Radio tuning coil No. 200, 1922-1923
1922-1923
Gold amulet in the form of a cobra
2000-100 BCE
Framed poster advocating vaccination against smallpox
1923
Working Model locomotive
1922
Novelty model
1955; 1830
"Swiftsure" copper posser by the British Vacuum Wsher Co. of Islington
1921
London & North Eastern Railway Steam Locomotive, 'Flying Scotsman'
1923
Freud electronic laughing ball
1990-96
Replica of Liverpool & Manchester Railway 1st Class carriage 'Traveller'
1930 (replica); 1834 (original)
Savoy Hill 'Meat Safe' microphone stand
1923
Set concert coils, 1922-1923
1922-1923
Popular Wireless no. 1 vol. 1, 1922
1922
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Neolithic flint scraper
4000-2001 BCE
Card of Authority to use portable receiver, 1922
1922
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Burndept mark IV tuner with glass back, 1922-1923
1922-1923
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
Ora wireless receiving triode, 1921
1921
Radio tuning coil No. 400, 1922-1923
1922-1923
Radio tuning coil No. 75, 1922-1923
1922-1923
Radio tuning coil No. 500, 1922-1923
1922-1923
Cossor Wurncell W.1 output triode valve (McVitie Weston valve collection), 1923
1923
Radio tuning coil No. 1000, 1922-1923
1922-1923
Radio tuning coil No. 750, 1922-1923
1922-1923
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Glass-stoppered bottle containing uranium
1801-1892 (prepared); 1946 (element replaced)
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Marconi-Sykes magnetophone
1923
Model of the "Planet" Locomotive
1830 (original); 1967 (model)
Novar Anastigmat Lens.
c. 1922
Voigtlander Anastigmat 'Skopar' Lens.
circa 1922
Zeiss Tessar Lens
circa 1922
Pathé Baby-Cine 9.5mm camera
1923
Pathéorama viewer
1922
Contessa Nettel Double Anastigmat 'Teronar' Lens
circa 1922
Section of Gas Holder Tank Plate from No.18 Gas Holder at Great Harwood Gasworks
1953-4
Bronze plaque
1921
Medal, University of Padua
1922
Clinical thermometer
1970-1900
Dummy model of 3-volt dry battery of 1923
1923
Motor car tyre pump
1921
Tyre pump
1922
Aneroid barometer by Paulin, 1923
1923