[Tuga666]

I don't know either but I think they are bottom painted like diablomozart said. I have some pieces of pexiglass to choose for a pickguard that I will make. I can take some pics of the transparent greens on top of maple... if you want to?

https://flic.kr/p/45436734051
I don't know why I thought on maple, I have rosewood too

 

[Tuga666]

I took a better look at some pics of a jem gmc and it's definitely painted underneath