What is it CI guru's??

I picked this up Friday at a rummage sale for $3. At first I thought I'd use it for a chicken wing fryer, but after looking at it, I got to thinking it might be something special. I figure it cant hurt to ask. There is no name on it, just the number 90 on the underside of the lid and the bottom of the pot. It has a hammered type finish on it. Its a small one too, about 7 inches in diameter, and 5 inches deep. Any ideas??
Thanks as always!

