[GreenKeys] An Introduction to Teleprinters and Punched Tape Equipment

[Sam Hallas]

Don Robert House wrote:
> Thanks Sam,
>
> If they are not interested they are on the wrong list!
Indeed they are, Don!

If anybody spots any mistranscriptions in the optical character 
recognition, please let me know. I've not had time to proof read it 
fully. It took long enough to get the layout right and make the 
photographs reproduce properly as originally shown in the booklet.

Cheers,
Sam