Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion Holes in a 48" Chevy OK sign?

im stumped. i keep telling myself that the 4 inside holes are probably for mounting, but that would make the outside holes useless. so then I think, maybe it was a neon... but if that was the case the neon tubing would have to connect from the outside coming across the yellow area, which doesnt make sense either.