eBay pic - Class E2a 555 and signal mast

[NW Mailing List]

https://www.ebay.com/itm/295788185834
Jim, here's an interesting signal mast (actually two of them) in Roanoke,
I'm assuming pre-50's?
What's the single set of position lights without the circular
background. why no circular background?
Mike Rector
[image: image.png]
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