I come across little wood jewelry boxes like this quite often during my thrifting rounds. It really doesn’t matter what condition the outside is in, because that can be sanded and refinished. It’s the INSIDE that you need to carefully inspect before you buy. For some reason bottles of ‘red nail polish’ with loose and leaking lids seem to get stored in jewelry boxes all too often!
The mirror in this particular box ‘appeared’ to be in good condition, so I just ‘painted around it’. But after sanding, when I tried to clean the mirror it just would not come clean! Luckily it popped out easily. And I had some scraps of coordinating paper to glue over the spot where the mirror was. (two big divots in the wood prevented me from just painting over the area).