[Mark W.]

Not sure if your flip eagle cap is "the one" or not, but Chevrolet used one as a factory mascot in 26-27 according to the book "Motoring Mascots of the World" and I think the threads are a bit larger than A's.

I also have a Beacon lighthouse which I had to replace the thermometer in, I used the guts of a really badly corroded Boyce meter and did a fair amount of machining to seal it in.

Jason - is the blinker switch knob like a big mushroom that you turn the top of to activate? If so, I think I know what accessory lamp it came from.