Title
A.l.s. to George Preece from J R Jarvis
Reference
UK0108 NAEST 020/071
Date
1873-05-21
Scope and Content
A.l.s. to G E Preece from J R Jarvis, Post Office and Telegraph Department, Melbourne. Refers to "double acting system" used on one of the department's lines. Encloses rough sketch, and asks for opinions. Also requests a diagram of W H Preece's double relay.
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Subject
Conditions governing access
Open
Level of description
file
