Cotton Bale Breaker
1911
Dye Sample
1916
Wrapping block
circa 1920
Ribbon loom with jacquard head
circa 1900
Platt Brothers Notice
1898
Platt Brothers Notice
1899
Replica of 1903 Wright Brothers' aero engine
after 1903
Reason slot meter, c.1920.
1918-1922
Demonstration radio receiver
1926
Addac adding machine
1926
GNR Railway Poster, The Skegness Cure
1911
Ring spinning frame
1901
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
Telephone crossbar switch, Swedish Ericsson, 1921
1921
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Filings coherer, glass tube bent into U-shape at one end, 1894-1904
1894-1904
Coherer with coarse brass turnings, 1894
1894
Gold amulet in the form of a cobra
2000-100 BCE
De Forest audion 1906-1915
1906-1915
Filings coherer, glass tube almost of taper shape, 1894-1904
1894-1904
Steljes ABC type printing telegraph receiver No. 477
1895-1910
National Telephone Company directory, 1898-1899
1898-1899
Marconi coherer and Admiralty pattern decoherer, 1900-1910
1900-1910
A T & T national telephone directory, October 1896
1896
Filings coherer, Lodge-Muirhead system, 1900-1910
1900-1910
Filings coherer, glass tube containing powdered copper, bulb at one end, 1894-1904
1894-1904
Amplion loud speaker with wooden horn, 1925
1925
Filings coherer, Lodge pattern with two wires inserted into bulb at one end, 1894-1904
1894-1904
Straight horn loudspeaker, 1921-1926
1921-1926
Copper plaque stamped with a Latin cross for protection against cholera
1900-1909
De Forest syntoniser, 1902-1907
1902-1907
Coherer, narrow-bore glass tube, 1894-1904
1894-1904
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Radio tuning coil No. 100, 1922-1923
1922-1923
Morse key with send-receive switch, 1900-1920
1900-1920
Protective leather and chain mail mask
1917-1918
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898
1898
Specimens of Pacific cable in glazed presentation case, 1902-1923
1902-1923
Five-line single cord switchboard, 1900-1909
1900-1909
Radio tuning coil No. 150, 1922-1923
1922-1923
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Selector switch, 1903
1903
Gecophone broadcast receiver, model B.C 3200, 1924
1924
Chromolithograph: Amalgamated Society of Engineers Machinists ... by Blades
1904
Framed poster advocating vaccination against smallpox
1923
Replica of the first Morse telegraph, 1835
1934
Filings coherer, glass tube with side-pocket attached to mounting bracket, 1894-1904
1894-1904
Filings coherer, glass tube bent into U-shape at one end with bulb to form side-pocket on mounting bracket with terminals, 1894-1904
1894-1904
Strowger automatic telephone, 1901-1910
1901-1910
Impulse sender (dial), 1915
1915