13/16" diameter, hole size 4mm, metal button with OM symbol. Shank back.
Set of 5, Vintage Sterling Silver Button Covers, Each One Different, 3/4" #MV-47
Blue Flower Button from Danforth Pewter, 3/4" #FJ-163
Leaf Medallion Button with Citrus Gold, from Danforth Pewter, 13/16" #FJ-160
Create Button with Black, from Danforth Pewter, 13/16" #FJ-159
Green Summer Maple Leaf Button from Danforth Pewter, 13/16" #FJ-158