Herman Siersbøl Very big heart pendant with necklace from 1960-1970

Very big heart sterling silver bracelet and necklace from around 1960 to 1970. Hallmarked "925S HS" - Herman Siersbøl was a silversmith in Kastrup from 1948. The heart measures 7.0 by 6.5 cm., the necklace measures 65.0 cm. Excellent condition.