Hand carved detailing country landscape-boy & dog on the bridge Gold(?)/Gold plated(?) Brooch/Pendant. Circa 1880 shell.

Detailedly carved Sardonyx shell from 1880th represent boy with a dog at the river bridge and tree with landscape at the horizon, brooch. Gold or gold filled/plated twisted rope bezel. Brooch total measures is 40 mm. by 50 mm. Weight is 11.15 grams. From the Connecticut Historical Antique Action. The Perfect Antique condition but some professional cleaning will be helpful..