[GreenKeys] Teletype Model 17

[Sam Hallas]

Jim Haynes wrote:
>  Model 17 was a Hellschreiber-like machine.  I can only presume, not
>  state as a fact, that maybe they were used to monitor German
>  Hellschreiber transmissions during ww-II.

OK, Jim and all. I've phoned the guy with the manuals and left a message 
on his answering machine.

I'll check what he's got against Jim's list and if there's anything new 
I'll collect it.

Cheers,
Sam