Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899 1899
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898 1898
Replica of Liverpool & Manchester Railway 1st Class carriage 'Traveller' 1930 (replica); 1834 (original)
Receiving ‘jigger’ or oscillation transformer with single layer split secondary coil and superimposed moveable two-part primary coil, used by the Marconi Company, probably made by Marconi's Wireless Telegraphy Company, Chelmsford, Essex, England, 1899 Receiving ‘jigger’ used by the Marconi Company, 1899 1899