Monkey Fist Black, Vintage Woven Fabric Knot Buttons, 1/2" #SK-760
Black buttons in "monkey fist" knot are vintage rayon, also known as Chinese Knot buttons in perfect condition, unused "new old stock vintage". Traditional round ball buttons with little self-loop shanks. True black with a bit of shine. 1/2" diameter including the loop. Some of the loops may besmaller than the ones in the photos. Sold per button.
These are a bit smaller than #SK-761.