This is a 1930s Czech glass button with a hat-shaped design featuring flowers. The green one is approximately 2.3cm and the blue one is approximately 1.8cm. Both colors have a charming, matte finish not found in modern glass. I think it would be very cute to use the parts to make brooches or earrings. There are some slight chips on the back of some of the green glass pieces, but they do not affect the front (see photos). (Not sold separately)