Pewter, partly gilded pewter.
History:
During the Second World War, when there was a shortage of materials, Estrid Ericson began to make jewellery in pewter. She often drew inspiration from her travels and created casts of flowers, ropes, buttons, buttons or, as here, seeds. The idea was perfectly timed, as “costume jewellery” was all the rage, even internationally.
Ref: 171157