Button--Late 19th C. Celluloid Bordered Openwork Faux Cut Steel 5-rayed Star

This unusual late 19th c. large 1 & 3/8" button has a striated faux tortoiseshell celluloid border, of tight-top construction, with an open reserve of stamped steel in black japan forming a complex 5-rayed star. It is is very fine condition with German back mark. It is a great choice among stars for competition.