I have a set of 13 vintage buttons which are brown with a back shank. They measure about 3/4" across and are plastic. I believe they are from around the 1950's - 1960's or so. They are in nice condition. There are 2 different styles - 1 set of 10 and 1 set of 3, all about the same shade of brown and all the same size. I will ship internationally.