I got these pieces at an estate sale…I have no idea what they are. As you can see they are the size of a half dollar; but some are different heights. A few are partly tourquoise, and one is all turquoise. Each piece has a different design as far as I can tell. Some of the designs are silver color; and some designs look to be brass. All the pieces seem to have a number on them. There are over a hundred pieces..I have no clue as to what they are…Maybe someone can help me figure it out, and also if they might be worth anything.