[GreenKeys] Another Whats-it ???

[Don Robert House]

I need to do more looking,  but my first thought is that this is an  
annunciator.
Would be used on a alarm circuit.  When cranked a code is sent over a  
copper pair to the central station.

I will download the images and look more carefully.

Don


On 8 Nov 2012, at 8:16 PM, John Hensley wrote:

Can anyone identify this what's-it ?

At URL:

http://www.w5jv.com/Unknown%20Device/
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