Thinder II,
My sign had neon, if you look around the white border you can see the dark spots with what is left of the tube supports. There are two holes, look to be original, one is just below the edge of the top wing, the other is at the front end of the white line for the lower wing. They look like big dark spots in the photo. Even photos of yours would help with the curves around the hoofs, tail and nose. If you have seperate holes for the wings, sounds like yours had the flying wings that flashed on and off.
Thanks,
Ed
[This message has been edited by Rust Collector (edited 03-04-2006).]