Woodbridge Antiques has dated this piece to the 1950s.
The brooch is in sterling silver with a light warm gilt coating. On the back are the marks for Aksel Holmsen - Norway Sterling 925s, and there is a good fastening pin on the back.

A gorgeous brooch, great for a collector of vintage Norwegian designer jewellery or butterflies.
Condition: Great pre-owned condition. The enamel is in super condition.
Period: Mid century.
Measurements: Height: 1.8cm Width: 3.5cm Weight: 4.54 grams
Weights and measurements are approximate.
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