This is a lovely vintage Art Deco hair comb or ornament made of celluloid and decorated with rhinestones. The celluloid is red and the rhinestones are red and green. It has a wonderful geometric form typical of the era.
It is about 6 1/2 inches by 3 1/4 inches and it is in very nice condition. There is a slight bend to one of the teeth as can be seen in the photo and a couple of the rhinestones have darkened a bit.