Terrier Antiques at Hebden Bridge has dated this piece to the 1900s.
The roundel connected with further enamel and filigree design and is all housed in it's original retail presentation box for K. Anderson od Stockholm.

This is a rare piece to come to the market as the vast majority of Hammer pieces are in Silver or Silver Gilt and not Gold and is in perfect condition with zero damage to the enamel.
c1900
Chain length is 40cm.
Free tracked worldwide postage and packaging is included in the price of this item.
Terrier Antiques at Hebden Bridge has dated this piece to the 1900s.
You can view the stock and full dealer information on the Terrier Antiques at Hebden Bridge Profile Page