Help identifying a stop sign

If there is anyone here that knows anything about vintage school bus things, I wanted to ask if you could help me identify the stop sign on my bus. Never seen one like it. I want to be able to restore the sign but I can’t until I find out what It is. Thanks

Well looking on the modeling, it looks nothing like a CE, C2, T3FE, none of that. It looks like CA4D???

Almost nothing is known about those stop signs. I’m not sure what year your bus is, but that stop sign was the style that was used on most buses then. Unfortunately I’m not sure the brand will be easy to figure out.