Looks like a 1970's 'whimsy' music box to me , with an imported feel (esp the 'music box') .
If it's easy to remove , I'd suggest taking out the music box & then giving the whole little item a good scrubbing with kerosene & a toothbrush , a soap & water wash afterwards & then a coat or two of furniture wax .... that should clean it up enough for a buyer (dirty & cheap too) .
You could also finish it with lamp-black or paint if ya wanted to too , instead of wax .