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There are many go-withs in the insulator hobby and one that stands out as an integral part of the early communication network is the telegraph keys and sounders.  There were three main devices used in early telegraphy.  The one everyone is familiar with is the telegraph key and the lessor known sounders and relays.
Sounder key Relay
Here is a look at some of the different styles that were used before the phone became widespread and replaced the old dot and dash form of communication.



Standard key marked on base:
Telegraph Key
A T & T Co
Marked on lever:
Western Electric Co.
Standard key unmarked


Marked on arm:
Manhattan
Elec Supply
New York
Stamped on board:
W.U.T. Co.
50 OHMS
Marked on arm:
Western Electric Co
Patent Appd For
Stamped on base:
WUTEL Co.
Mainline Sounder 150
120 OHMS


Marked on arm:
J.H. Bunnell  & Co.
New York U.S.A.
Marked on base:
Pat App'd For
Marked on arm:
Karas Electric Co.


Stamped on base:
140 OHMS
Marked on arm:
E.F. Johnson Co.
Waseca. Minn.


Marked on tension knob:
Skirrow Patent 760029
Marked on base front:
No. 106 Relay
Postal Shop
Base stamp:
NOV 27 1902
Note: Coils have been removed for rewinding
Marked on tension knob:
Skirrow Patent 760029
Marked on base:
No. 53 Relay
150 OHMS


Note: Coils have been removed for rewinding


Marked on coil holder:
Western Electric Co
Patd July 21 1903
Stamped on board:
WUT CO
Morse Relay 4-C
100 OHMS
Marked on brass plate:
W.U. TEL. Co.
Morse Relay 4-B
150-OHM


Stamped on base:
W.U. TEL. Co.
Morse Relay 4-B
150 OHMS



Marked on arm:
J.H. Bunnell & Co.
New York U.S.A.
Stamped on board:
5 OHMS
Marked on arm:
Menominee




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