broaches is a huge and specialised area - categorized by region/country, different period styles, materials & dates.
Is the sterling silver trademarks link you recommended at the following url adress?
http://www.silvercollection.it/hallmarks.html
Warm Regards
Yvonne
Rating
earrings v broaches by: jimmy
I would like to know more about broaches, but are not very knowledgeable in this area. You can find the sterling maker and country of origin. just google vintage silver trademarks. You can click the image access and may find the exact ones. Good luck.