Unusual vintage Art Deco duette / triette - a clear rhinestone silver tone brooch which can be converted to three dress clips - metamorphic

Lovely vintage Art Deco paste duette with clear rhinestones set in shiny silver tone metal. This example has such a pretty and intricate design, in classic 1930s 'white period' style. This piece is really unusual in that it converts into three small dress or shoe clips so then there are three separate, wearable pieces unlike a lot of duettes (where there are only two clips). It is in good vintage condition for its age, please examine the photos carefully.