This is a Korean Yi Dynasty (1392-1910) brass fish lock used on a blanket chest, or Bundaji. The lock is functional and almost impossible to pick. The fish was a popular design for a lock as the fish never closes its eyes, tby keeping constant guard over what was stored in the chest. It is in great condition for its age, with the outlines of the eyes, gills and scales still very visable. It is approximately 5 1/2" wide, 3 1/8" high and 3/4" thick. The opening is approximately 2 1/4" wide and 1" high. The shaft is about 1/4" in thickness. All items that I offer on eBay were purchased by my wife and I when we lived in South Korea from 1966 until 1974 and again from 1976 until 1985. If you are not pleased with your purchase, you may return it within seven days as long as it is in the same condition that I sent it. I will refund your purchase price. You pay only the shipping and handling costs. I pack with only new boxes and use bubble plastic (sometimes along with polystyrene peanuts). My shipping and handling charges rarely cover my actual cost. If you buy multiple items, I might be able to ship several items in one box and reduce the shipping charges. Happy bidding!