These buttons came from Rowan but I do not think they were ever in mass production.
They are made of some type of stone and are cream with grey marbling. Each one is slightly different in coloration and marbling.
They are oval in shape and measure three quarters of an inch across the widest part, They have two buttonholes. They are suitable for medium to heavy weight garments and are very attractive
I am offering these as packs of 10 buttons
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