Huge Vintage 1920s Flapper Button Green Celluloid 2 7/8 Diameter

This is a 1920s vintage green celluloid button that a flapper would have worn on a dress at the side of the hip. The button is quite large, measuring 2 7/8 in diameter. The celluloid is wrapped around a rigid core with a textured black back. There are two oblong holes drilled, one to either side of the centre. It is in very good original condition.
These large buttons are difficult to find - great addition to a button collection or simply to use on a garment!