Antique Bovine Celluloid Micro Mosaic pin Brooch

Antique, early 1900's Carved Celluloid Micro Mosaic Pin Brooch. T Bar hinge, c catch, thicker pin. Pin extends past catch. Stamped Italy. Edwardian Era. 1.75" wide by 1.3/8" No missing Tessarae tiles in Mosaic. Tiles are black, red, white, pink, yellow, and green. The frontal of carved bone has a small surface crack....possibly from when they put hinge on....in the same area....very minor.