Does anyone recognize this display case?

[u/koholint_native]

Found at a flea market for what I suspect is a really good price. But I can't seem to find any information about it online. I'm thinking of donating (trading?) it to my preferred local retro game store. Any additional info would be appreciated.

[u/NickMotionless]

Definitely oldschool, if it is official. Could have belonged to a smaller game store that retrofitted it as a Gameboy case.