Victorian shell Beautiful Cameo Brooch & Pendant Gold Filled or 12K Gold (marked). Nicely done XIX century peace

This Brooch total measures is 40mm x 30mm. (1 5/8” tall, over 1 1/8” wide and stands 1/4” high. Total Weight is 5.2 gr. , and set in beautiful rear style bezel with grape leaves. Sign “1•20D 12K”. The shell have a little chip, and crack - see the pictures. The detail is very crisp and sharp . This Roman Profile woman created in the second half of XIX century - original, vintage piece.