Woman with goat near vase on the column, craftily Sardonyx shell. in the Gold or Gold Filled Brooch Circa 1875

Well carved antique Gold or Gold Filled (no marks - which is common for that time) or Gold (it does have gold content in the acid test for 10K Gold). Measurements - 1 5/8” by 1 3/4” (40 mm. by 46 mm.). Weight is 11.1 grams. Nice carving circa 1875. For this age - superior condition but some cleaning will helpful.