-
Laboratory Experimental Unit: Detector and Mo...
-
Complete Telegraph System by Hasler, Bern, 19...
-
...
-
Early Swiss Morse Ink-Writer by Hipp, c. 1880...
-
Italian Ink-Writer Telegraph, c. 1890...
-
Dial Telegraph and Galvanometer...
-
German Telegraph Station by Wetzer, c. 1880...
-
English Telegraph Demonstration Model, 1902...
-
French Ink-Writer Telegraph by Ducretet, c. 1...
-
American Candlestick Telephone by De Veau, c....
-
Skeleton Telephone L.M. Ericsson, c. 1905...
-
Intercom Telephone by L.M. Ericsson, Stockhol...
-
Telefunken EV 89d Telephone Amplifier, 1917...
-
Swedish Field Telephone, c. 1900...
-
Swedish Field Telephone by L.M. Ericsson, c. ...
-
Group of Early Telephone Handsets and Accesso...
-
Swedish Intercom Telephone...
-
Large ...
-
"MAC – Mechanical Analogue Computer" for Flig...
-
Apple Lisa-1, 1983...
