Monkey Fist Black, Vintage Woven Fabric Knot Buttons, 9/16"- 5/8" #761
Black vintage 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. They're a bit shy of 5/8". 14mm. $1.30 per button
These are a bit larger than #760.