[GreenKeys] Technical Pamphlets for Workmen - B7 Western Electric Duplex Type Printing Telegraph

[Sam Hallas]

Many thanks to fellow Telecoms Heritage Group member Martin Loach for 
scanning his original. My digital
recreation is now online at
http://www.samhallas.co.uk/repository/index.htm#Telegraph

This also includes notes stating the differences in the Murray and
Siemens systems. I hope this is of interest to Greenkeyers.

Cheers,
Sam