20s/30s Celluloid Buckle Bangle Set

Very rare bangles from the 1920s or 1930s, one in cream and one in black. The bracelets have a hinged opening which looks like a buckle decorated with delicate flowers. They are made from celluloid plastic. The white bangle has hidden pieces of velcro under the closure. They are in good condition with flaws commensurate with age, please see photos.