Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Brass worksplate, Manning Wardle & Co
1920
Model of a North Eastern Railway coal wagon, c 1915
1910-1920
National Cash Register co model 422X cash register
circa 1910
Creda No 762 electric toaster with open element. No. 4515A
1914-1920
'Detraining in England', print, England, 1914-1918
1914-1918
model double-sided discharge wagon
1910
Working Model locomotive
1922
Novelty model
1955; 1830
Lapel badges, France, 1915-1917
1915-1917
Glass necklace worn to prevent bronchitis, Greenwich, London, 1914
1914
Amulet brooch in the shape of a black cat
1914-1918
Handcuffs, steel
1918
Gas mask, Germany, 1915-1918
1915-1918
Coolidge X-ray tube, 1913-1923.
1913-1923
Red Cross fund-raising brooch made from Zeppelin wire, 1917.
1916-1917
Addac adding machine
1926
War memorial plaque, South Eastern & Chatham Railway
1914
X-ray plates
1914-1918
Portable fluoroscope, Europe, 1912-1922
1912-1922
'Electric tonic' amusement machine, Europe, 1915-1925
1915-1925
'Cat's whisker' Crystal Radio
1920-1925
Battery locomotive, North Staffordshire Railway
1917
Model steam locomotive LMS 'Royal Scot'
1927
"Ingersoll" wrist watch with leather strap
1915
Double surface of revolution of constant negative curvature
1910
Burroughs Class 5 hand operated mechanical adding machine with ten registers
1920-1925
Burroughs hand operated adding and listing machine
1917
Revolution of constant negative curvature
1910
Hobbs-type artificial left hand, Europe, 1918
1918
model steam locomotive London, Brighton & South Coast Railway
1925
Gecophone broadcast receiver, model B.C 3200, 1924
1924
Two-valve short wave radio - telephonic receiver, 1927
1927
Impulse sender (dial), 1915
1915
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Radio tuning coil No. 300, 1922-1923
1922-1923
Radio tuning coil No. 100, 1922-1923
1922-1923
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Radio tuning coil No. 200, 1922-1923
1922-1923
Radio tuning coil No. 150, 1922-1923
1922-1923
Straight horn loudspeaker, 1921-1926
1921-1926
Amplion loud speaker with wooden horn, 1925
1925
Demonstration radio receiver
1926
Loud speaker valve type L.S.5. W/T, 1923
1923
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
'Leiber's Five Letter American Telegraph Code', book issued 1915
1915
Murray multiplex tape transmitter, 1910-1920
1910-1920
Replica of the first Morse telegraph, 1835
1934
Model of a pendulum clock based on Galileo's design
1921