Herman Siersbol Modern brooch from 1950-1970

Herman Siersbøl sterling silver brooch in moderne design. Hallmarked "HS STERLING DENMARK". Herman Siersbol was a silversmith in Kastrup from 1948 until around 2000. This is from around 1950 to 1970. Measures 5.5 by 4.5 cm. Excellent condition.