The scene is in a frame of abalone mother-of-pearl set in platinum decorated with fine milgrain with a small rose-cut diamond in each spandrel
On the edge:
. Double eagle-dog head hallmark in 18-carat gold and platinum.
. Illegible partial maker's mark.
. Marked MADE IN FRANCE.
On the needle:
. Eagle head hallmark.
A very similar brooch representing a fish which was sold by Bonham Skinner, link below:
https://www.skinnerinc.com/auctions/2641B/lots/515
Dimensions 3.9cmx2.4cm.
Weight 8g