De Forest audion 1906-1915
1906-1915
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Model of Wright Flyer
1903
Brennan's Gyroscopic Mono-rail Car
1907
Chromolithograph: Amalgamated Society of Engineers Machinists ... by Blades
1904
Wagon owners plate, Shell-Mex & BP
1901
National Cash Register co model 422X cash register
circa 1910
Poured wax doll
circa 1900
model double-sided discharge wagon
1910
Model of fog signal machine and repeater
1900
Novelty model
1955; 1830
Lapel badges, France, 1915-1917
1915-1917
Mill Engine
1903
Glass necklace worn to prevent bronchitis, Greenwich, London, 1914
1914
Anatomical model of the spine
1901
Red Cross fund-raising brooch made from Zeppelin wire, 1917.
1916-1917
Clay tobacco pipe decorated with bust of Edward VII and Queen Alexandra
1900-1910
Wooden foreplane, 1900.
1900
War memorial plaque, South Eastern & Chatham Railway
1914
Stained glass window, Lancashire &Yorkshire Railway
1904-1914
BP tank wagon
1901
North Eastern Railway Dynamometer Car
1906
Battery locomotive, North Staffordshire Railway
1917
South Eastern & Chatham Railway Class D 4-4-0 steam locomotive No 737
1901
Bo-Bo No 1
1902
Queen Alexandra's Saloon
1902
London & North Western Railway 1st class corridor brake no. 5154
1906
"Ingersoll" wrist watch with leather strap
1915
Double surface of revolution of constant negative curvature
1910
Burroughs hand operated adding and listing machine
1917
Revolution of constant negative curvature
1910
Model of LNWR Third Class railway carriage
1907-1917
Model LNWR luggage carriage, c 1912
1907-1917
Model London & North Western Railway carriage
1907-1917
Selector switch, 1903
1903
Impulse sender (dial), 1915
1915
Five-line single cord switchboard, 1900-1909
1900-1909
Strowger automatic telephone, 1901-1910
1901-1910
Silicon crystal for wireless telegraphy, mounted in a locket, 1906-1916
1906-1916
Table instrument with dial, 1903
1903
Strowger calling dial, 1906
1906
Sample of four-core telegraph cable connecting Vancouver Island with the mainland
1904
Marconi coherer and Admiralty pattern decoherer, 1900-1910
1900-1910
Aerial inductances, 1901
1901
Experimental form of Marconi Company magnetic detector, 1900-1910
1900-1910
'Leiber's Five Letter American Telegraph Code', book issued 1915
1915
Experimental model of Marconi's magnetic detector, 1900-1910
1900-1910
Morse tape on which signals were recorded by means of a coherer, 1900
1900
Filings coherer, Lodge-Muirhead system, 1900-1910
1900-1910
Replica of the first Morse telegraph, 1835
1934