43 page booklet
40 page booklet about the Pentaconta Local Telephone Switching System (Pentaconta 1000 crossbar switch)
No. 7002 type dial (maintenance instructions), ED. 7302, September 1923
Published by the International Western Electric Company Incorporated
European? Engineering Department, Division No.1
From a black binder titled "No 7-A Machine Switching System"
which holds the 7000 series "ED" instructions
label inside reads: "Book No. 1014 Date April 20 1923
Assigned to Mr. A E Reinke (Riga), this book will be kept up to date, ED instructions"
from the book: Western Electric Machine Switching System (extract)
Author: Bell Telephone Manufacturing Company Ltd. Antwerp
text and pictures related to dial and subscriber sets, ? 1910
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