I would google dating vintage or antique brooches. I'm unable to see the parts of the pin. That plays a big part in dating brooches. The hinge and the clasp. Also the types of material used. I'm thinking between 40s and 50s becouae of the Lucite faux Pearls. First step in dating is learning when jewelry findings were 1st made and popular including metal glass and plastic as well as hardware. Hope that helps. Google has helped me tons. Also if their are no makers marks it's hard to tell where it came from but look up when mass jewelry production started too. It will be dated after that time with those findings
Jennifer Walter
