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HISTORY & MONARCHY

 

 

 

  electrical telegraph transmitter keys (Morse keys)

 

Thailand

In order to convey a telegraphic message, Morse codes were sent over an electric wire to an electrical telegraph receiver, using a transmitter key.

 

 

Due to this, a transmitter key is also referred to as a Morse key.

See POSTAGE STAMPS (1), (2) and (3).

 

  electrical telegraph transmitter keys (Morse keys)