These are really nice looking buttons with a snakeskin like look in the black fabric. There are 2 that are 1 ¼” in diameter and are marked Defiance #50 on back. There is no shank on these because there is a material center on back where you sew it on to your item.
All my items are sold in used, pre-owned condition. Vintage and Antique items by nature have some wear, imperfections and signs of use and age.