Well, I don't actually know exactly what these are, but they are soooo cool! They are Art Nouveau from the 1920-30's I would say. Solid brass with a repousse brass piece riveted on. A woman's face with lovely flowing hair and a helmet. Athena? They obviously fastened to something, they have prongs on the back that are really hard to bend. They have the wear of time, which makes them even cooler! They measure just over 1 3/4" across. They have been in my collection for years, but it's time to let them go on to someone else. They will make a fabulous accent for something.