The book was printed by George Over Ltd., London and Rugby, for the Public Relations Department of the General Post Office.
Susan Dials a Trunk Call
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| Photo: Framed and mounted version of poster displayed August 2020. Publication is attributed to Post Office Telecommunications. | |
| Susan dials her pen friend Janet's number.
Underground distribution: Her voice goes...Footway box and
cabinet: along cables...Local automatic exchange: to the local
exchange. Trunk exchange: The trunk exchange...Underground cable
in duct: connects the call...Exchange apparatus: through other
large exchanges...Overhead pole route: through wires and
perhaps...Unattended automatic exchange: a small country
exchange...Distribution pole: more wires, and finally...Bracket
and insulators: to Janet's house...and Susan talks to Janet who
is three hundred miles away. |
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| Susan makes a Trunk Call | |
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| Enlarged image from earlier booklet. With thanks to Irene Byrne (Telephonist 1964). | |
| Susan dials the exchange and asks for the number. Bracket and insulators: Her voice goes...Distribution Pole: over wires...Footway box and cabinet: and along cables...Exchange apparatus: to the exchange. Exchange switchboards: The operator...Underground cable in duct: connects the call...Underwater cable on seabed: through more cables...Distant exchange: at least one more big exchange...Overhead pole route: more wires, and perhaps...Unattended automatic exchange: a small country exchange...and Susan talks to Granny three hundred miles away. | |
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