Richly detailed 10K gold shell cameo brooch/pendant

This 1-1/4 x 1-1/8 inch oval portrait features sharp and clear lines at the hair and neckline and in the flowers that adorn both. The open work gold frame is quite unusual. Marked 10K YE (which I believe signifies yellow gold) on the pendant bale, which folds down so you can also wear the piece as a brooch. In excellent condition, with a couple of fine scratches on the gold on the back.