Small Terracotta Oil Lamp

Small Terracotta Oil Lamp

I bought this at a local thrift store for a buck. It had a sticker on the bottom of it labeled estate. I think someone bought it along with a bunch of other items from an estate sale or auction and then decided to donate this particular item to the thrift store which benefits a local charity.

Other than knowing what it is does anybody know where it came from? Is it old? I bought it because it was a buck and it was a curosity so I'm not expecting a lot but any help would be appreciated.

Thanks, Mike