Similar to ones I've seen from Tibet. This one is interesting as it is of Ganesh and his Vahana. It is more common for these to depict Virabhadra. Some wear, possibly from use in puja prayer.
Unsure of the age it seems like ones I have seen from southern India from the 19th century. I haven't found anything else like this one with Ganesh.
It's about 5" wide and 6" high. Photos taken at a bit of angle to show detail. Let me know if you require additional photographs.