Ubicación virtual: Telephony
-
SN186
Telex tape roll with protective cover
-
SN862
Wooden device with magnet and crank. Exterior bells, separate audio and voice system and shelf to write messages.
-
SN019
Copper apparatus for emitting sounds
-
SN046
Carbon battery with cardboard lining. Connection terminals at the top
-
SN049
Metal case with numeric display and manual drive mechanism
-

SN066
Device with a metal case, rotary dial, metal cradle and integrated handset. Plastic cord.
-
SN067
Handset made of wood and metal with fabric cable.
-

SN068
Apparatus for measuring the duration of a telephone call. Usually used on long distance calls where one lever was to start the count and the other to stop it. It had the possibility of punching a card where the start and end time of a call was indicated.
-
SN090
Metal body with internal sound system.
-

SN091
Card with printed circuit board with components such as capacitors, iodines, resistors, etc