Title
A.l.s. to W H Preece from M H Callway
Reference
UK0108 NAEST 020/252-3
Date
1876-09-22
Scope and Content
A.l.s. to W H Preece from M H Callway, written at Newport. Refers to duplex experiments and alterations to equipment, including relacement of double wound pecker. With attached diagram and notes re equipment used. The equiment shown was used successfully for duplex trials with Swansea and Bristol.
Physical description
Number of pieces: 1, Pages/folios: 2
Language
English.
Persons keyword
Callway M H
Subject
Telegraph equipment, Swansea, Bristol
Conditions governing access
Open
Level of description
file