This is an original WW1 Era Merchant Navy Hand Made Sweetheart Button Broach With Pin Backing . This example was made during the First World War. This example was made from a merchant navy button with the rear being cut off and a pin backing being added. These were often give to wives, mothers and girlfriends of the times. These were also made and used during WW2 but were much more common during ww1. It’s unusual as it’s not exactly military related but civilian.