"Dora" Danforth Pewter Button, 2-hole 1-1/8" USA Made, Pack of 3 #FJ-167-3

Thin and not domed, 2.5mm holes, and the silver color is fairly shiny so the light catches the grooves. As the light changes, the grooves and the background shift from light to dark.  Lead-free pewter, made by Danforth Pewter in Vermont. Limited supply.  Sold per pack of 3.   We also have the smaller Dora.