| STD: Susan Dials a
Trunk Call |
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Our Telegraph and Telephone Services
by Mary F. Moore was one of many publications that were
produced for schools and colleges.
The centrepiece of this booklet contained a double-page
diagram entitled 'Susan Dials a Trunk Call.'
Book: printed by
George Over Ltd., London and Rugby, for the Public Relations
Department of the General Post Office.
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Susan Dials a Trunk Call | Susan makes a Trunk Call
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Susan Dials a Trunk Call
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This is obviously a 1960s booklet
because Subscriber Trunk Dialling had only been introduced
in 1958.
This diagram was made into a large wall poster for schools.
Scan:
Susan Dials a Trunk Call.
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Susan makes a Trunk Call
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In this earlier version, Susan makes
her trunk call via the operator as she cannot yet dial it
direct.
Susan makes a
Trunk Call. With thanks to Irene Byrne for this image
from her booklet.
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