[ARC5] What is in this photo?

[Kenneth G. Gordon]

On 5 Aug 2018 at 12:12, Brooke Clarke wrote:

> A very interesting find.  I've posted the photo on my Gibson Girl page
> because what looks like a motor driven Morse Code Wheel, but that's
> just a guess now.

Those "code wheels" are much too small in diameter to contain much more than one, or at 
the most, two letters.

>From what I can see of them, I suspect they are a motor-driven "square-wave" generator. 
The projections look too even to be much more than that.

Ken W7EKB

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