Dating from the mid to late 1800's, and measuring 11/16", here we have a molded concave black glass button featuring a dragon. It has a small brass plate and loop shank. The shank is bent slightly, but very functional. There are a few flea bites along the edge that are barely noticeable. The back looks a little rough, but I believe that it came out of the original mold that way. I consider it to be in good condition. $9