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Actions	Details Remove from selection Add to selection Title A.l.s. to Mr Beaufort from unidentified correspondent Reference UK0108 NAEST 020/037 Date 1872-10-24 Scope and Content A.l.s. to Mr Beaufort, referring to the use of two keys on a duplex circuit. Gives reasons against the suggestion, and describes the procedure for sending messages. Physical description Number of pieces: 1, Pages/folios: 1 Language English. Persons keyword Beaufort Subject Telegraph equipment Conditions governing access Open Level of description file Hierarchy browser 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 020/037 A.l.s. to Mr Beaufort from unidentified correspondent

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Title
A.l.s. to Mr Beaufort from unidentified correspondent
Reference
UK0108 NAEST 020/037
Date
1872-10-24
Scope and Content
A.l.s. to Mr Beaufort, referring to the use of two keys on a duplex circuit. Gives reasons against the suggestion, and describes the procedure for sending messages.
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Beaufort
Subject
Telegraph equipment
Conditions governing access
Open
Level of description
file

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