Asian hotsell Iron Teapot, Set of 2 small teapots

Cast Iron Teapots, Set hotsell of 2 small ( holds 16 Oz
Each), Appear very old and well used, one has some sort of Asian stamp on the bottom, the stamp on the second pot is worn off, These are still very usable!! I have seen these pots individually but have not seen them as a set, I believe these are quite hard to find.