Woodbridge Antiques has dated this piece to the 1950s.
The body, wing edges, antennae and back of the brooch are all in the warm silver gilt finish.

There is a good fastening pin and the clear marks for David Andersen, Norway Sterling.
Lovely for a collector of David Andersen or mid century Scandinavian enamel jewellery
Measurements: 4.4 cm x 2.6 cm Weight: 7.4 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