Vintage Louis Rousselet blue moulded / poured glass bead and gold tone Art Deco brooch made for a brand with initials AD - Andreas Daub ? saphiret for example here: https://www

for example here: https://www

bow brooch from the 1940s

The rhombus/diamond ( or parallelogram

and apple-green to deep green variety of cryptocrystalline chalcedony (silica) coloured by nickel

please examine photos carefully

Vintage Louis Rousselet blue moulded / poured glass bead and gold tone Art Deco brooch made for a brand with initials AD - Andreas Daub ? saphiret for example here: https://wwwUnusual vintage pale blue moulded poured glass flower bead and gold tone Art Deco circular brooch. The blue glass frilly beads are beads by French maker Louis Rousselet. However, the brooch has a stamp on the back with the initials AD. This may stand for Andreas Daub, but I haven't seen an example like this before so can't be sure. The brooch has a diameter of about 1 3 4 inches and fastens with a secure trombone clasp and pin (a type of clasp often