Two old French telephones (circa 1910)
Two-channel register by J.H. Bunnell (N.Y.)
Various Geissler and Crookes tubes
Very attractive Geissler tubes
Various Geissler tubes, filled with coloured liquid. The lengths vary from 15 to 52 cm !
Steljes-type telegraph by The Exchange Telegraph Cy (U.K.)
Very old French military telegraph by Digney- Paris
Early Belgian embosser by E.Sacré
French military telegraph by SIT- model of 1907
Swedish K.O.B. by L.M.Ericsson -Stockholm
Swedish repeater station by L.M. Ericcson- Stockholm
Very early French needle telegraph by Foy & Bréguet. The needle could adopt one of eight positions simulating the signal arm of the (optical) Chappe system. Two consecutive signals represented a figure between 1 and 64. Consecutive figures referred to a word or an expression.
Mirror galvanometer for use as a receiver on submarine cables. This one is by the Telegraph Works Silvertown (London).
Alarm receiving station by Harrington-Seaberg (Moline, Il.)
Combined ABC (dial) and printing telegraph by Bénévolo- Lyon (France)
Telephone by L.M. Ericsson (Stockhom)- model of 1892
Left a telephone by Grammont (Paris) of 1910 and right an S.I.T. (Paris) from 1919
Two telescopes -circa 1815- used with the optical Chappe telegraphs. One was used in Paris, the other on the line to Milan. Such a telescope is the oldest artifact that one can collect in the world of telegraphy.
Toy single-needle telegraphs; two are from John J. Griffin, London.
Pretty old radio (twenties) by REGA (France)
Right: replica of the coherer by Branly. Left: real coherer with decoherer system.
Different Morsekeys
Rather big Ruhmkorff induction coil by E. Leybold’s Nachfolger-Cöln (Germany)
Some more Crookes and Geisller tubes. The one in the front has a length of some 75 cm !
Complete Austrian telegraph table with embosser-by Leopolder & Sohn
The Selfwinding Stockticker by T.A. Edison Inc (patent around 1902)