Vintage Silver and Red Enamel Heart Cloisonne Locket on 925 Silver Chain in box

This vintage locket is from the 1960s. It's silver-toned metal (a silver alloy), with a red and pink enamel cloisonne front. The inside of the locket is brass. The locket is in very good condition, with minor signs of wear. It measures 1.2" by 1.3" The bail is modern stainless steel. The chain is also modern; it's sterling silver, measuring 18". The necklace will come in a gift box.