This is a "WESTERN ELECTRIC/TELETYPE"

booklet on "How to Operate the No. 15 Teletypewriter
on Teletypewriter Exchange Service (TWX)".

Published in 1962 with 25 pages.

Everything you needed to know to operate this 
early machine.

With this machine, on TWX service, you could dial 
the number of any other machine and connect and 
type back & forth with them.

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