This is a fabulous vintage brooch dating to the 1960s or 1970s.
It is mid-century modern Danish - and marked with the letters RS for Randers Sølvvarefabrik.
The company has existed since 1853 - and it is still involved in the production of silver jewellery - its senior design is Troels Tvenstrup.
This is a very unusual and beautifully made Brutalist style brooch - I have been unable to find another one quite like it.
It is of a nice large size and is very eye-catching with a good bit of weight to it. It measures: 5.5 cm x 4.7 cm. It has a nice sturdy pin - with a ring safety clasp.
A fabulous piece of vintage Scandinavian jewellery - possibly a unique piece.
This is reflected in my asking price.