Vintage set of 18 bright white mother of pearl shell buttons with 4 holes. My mother used to call these "shirt buttons". They have the most beautiful iridescent luster. I found them tied together with thread, so I decided not to disturb them!
Each measures exactly .5625" [9/16 inches] in diameter.
So many uses for these beautiful white shell buttons. Every well equipt button jar or sewing basket should have some of these!