Woodbridge Antiques has dated this piece to the 1950s.
The brooch is silver with gilt coating and on the back are the marks for N M Thune - Norway Sterling

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A dazzling brooch - great for a collector of vintage Norwegian designer jewellery.
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Condition: Great pre-owned condition. The enamel is in beautiful condition.
Period: Mid twentieth century.
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Measurements: Height: 2.5cm Width: 3 cm Weight: 7.7 grams
Weights and measurements are approximate.
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Stock Code: 41920
Woodbridge Antiques has dated this piece to the 1950s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page