This lot of 10 buttons are plastic but have the look of fragile bone. They are 7/8 1/2 inch in diameter and are 2 hole sew through style. The uniqueness of these buttons is the black stripe that runs through each. This is random. In some it goes completely across and in others it is a broken or partial line. These are not Bakelite. I have tested them. Vintage buttons but no damage no signs of use.
Please note that button purchases can be combined to save on shipping. At least 3 lots,often more, will go for the one shipping rate. I automatically give refunds when lots are combined.