[GreenKeys] What is it?

[Mark Hall]

This IS a toughie.

Did this come off a Teletype machine? Looks more like tractor.
I'd hazard a guess that it was some kind of "coupler"- like between
a motor and something it drives, like a pump. I've seen Soviet TV's
that had plumbing going to them, but a Teletype? A baffling conundrum
to say the least...

73!

Mark
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