These are gorgeous vintage mother of pearl buttons. They are quite luminous with shades of golden beige and ivory. These have polished tops and rustic, unpolished backs. These buttons are substantial, with the sewing hole carved across the back. The tops are not level, they have a wavy curve to them that brings out the grain and shimmer of the shell. Each button is unique. These are vintage USA, estimated to be from the 1940s to 1950s. They measure 15mm or a bit over 1/2 inch. You will receive 6 of these lovely vintage mother of pearl buttons.