Possible Tramp Art-shaving box?

Maybe someone can tell me more about this box? Tramp Art? Shaving box? Neighbor cleaning out his Mom's house gave this to me. He didn't know much about it, but said it was his grandfathers, maybe in the 20's 30's...You can see the cigar box labels inside drawers. I think the mirror was replaced, or maybe it had picture. I probably should not varnish it though I thought about it. Thanks. J