Vintage Shamrock Brooch Four Leaf Clover Signed Untested Saint Patricks Day

I'm unsure what the signature is. Read. Could very well be sterling but I didn't test. FREE DOMESTIC SHIPPING on $50+ Orders (Excluding Lots) I ship daily, 5 days a week! Please see photos for measurements and condition I do not deep clean the jewelry, especially the vintage. I clean with microfiber cloth. I do not want to damage it. I do not leave backs on earrings for sanitary reasons unless in super condition. Please hit the heart by my name to save my store, I list more jewelry DAILY! Shop my other 2000+ jewelry listings! I combine shipping. $5.50 first item and .50 each additional item up to $50. Then FREE