Exact age unknown, but looks 1920’s / 30’s. Stamped 9ct to rear, weighs 7.2 grams, 31mm high x 24mm wide, in very nice condition. Pin opens and closes well...
Weighs approx 1.5 grams & measures 19mm high to the top of the bail x 16mm wide. The chain loop is stamped 375 (9ct) and with an unknown makers mark. The applied white banding goes all the way around and is white gold. Some minor surface wear.