French Marine polished metal buttons, 3/4" diameter as shown in Sketchbook 56, Volume 2 French Marine by Ted Spring. Domed with a ringed edge, .050" thick, with a brass loop soldered inside. You may buff these to a brilliant shine, by hand or with a buffing wheel. Best quality, made in the U.S.A. See our 1-1/8" diameter and 1" diameter sizes also!