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Title
Quadruplex working:diagram
Reference
UK0108 NAEST 020/144
Date
16 July 1886
Scope and Content
Printed diagram of quadruplex system with manuscript title. Shows system between New York and Boston.
Physical description
Pages/folios: 1
Language
English.
Subject
Telegraph equipment, New York, Boston
Conditions governing access
Open
Level of description
file

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110000001
NATIONAL ARCHIVE FOR ELECTRICAL SCIENCE AND TECHNOLOGY
contains 322 parts
- UK0108 NAEST 020
  Baker Collection: Papers of Sir William Henry Preece
  contains 213 parts
  - UK0108 NAEST 020/144
    Quadruplex working:diagram

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