Antique pin. From the Victorian era. Somewhere around 1890 in age. Has a simple c-clasp as age would indicate. Painting is on porcelain in excellent shape. It is about 1.5 inches in diameter. The ring around it is a bit bent, shows some tarnish at the solder joints. It is an antique 100+ years so to be expected. It is unmarked. My guess is the metal is brass.