1930s Banjo Playing Mickey Mouse Brooch - Enamel and Rhinestone (missing !)

A smiling Mickey mouse plays the banjo.
Well modelled and the enamel is good, but all but 2 of the rhinestones have all fallen out of the settings !
Made of a silver tone light metal 
3.5cm tall and 2.1cm at its widest point.
A wonderful repair project.