Brooch Agate cameo

"Brooch Agate Cameo " Brooch with its yellow gold 18-carat cameo on agate. The cameo represents a woman in profile There is some damage to the gold mounting and a small opening. There is also a slight chip on the cameo at the neck. French work, late 19th, early 20th century, hallmarked with an eagle's head. Dimensions - Weight : 22 grammes Total length: 3.95 centimetres Cameo length: 3.48 centimetres Width: 3.29 centimeters without pin Cameo width: 2.78 centimeters Total thickness: 2.1 centimeters Cameo thickness: 1.6 centimetres