Vintage key pendant SOSY skeleton key steampunk charm silver tone heart

Beautiful vintage key pendant The key has a heart shaped cutout and says "SOSY" on one side. Im not sure if this is a real key that has a bail loop soldered on, or if it was cast from a mold of a real key? See photo next to quarter for size reference It's in good preowned conditon with some minor wear and darkened patina, nothing major. Pendant only, no chain Ships fast! CAPYC831LD3N4L key to my your heart lock padlock valentine valentines day jewelry