These are amazing and I've been hoarding them for years but it is time to let some of them go. These are handmade Czech glass cabochons from probably the 1910's to 1930's. Made from green glass over foil with blue dotting to resemble an eye. They are 10mm in diameter and height goes up to about 5mm. Shape is actually a little hollowed out dome and gold paint was applied on inside of dome as part of finishing. Truly something rare and special. Sold per piece.