Vintage Giovanni Apa Sterling Silver Cameo Screw Back Clip on Earrings

Another gorgeous pair of screw-back Cameo earrings from Italy. These are still in their original box from Giovanni Apa, from the mid-20th century. These appear to be in sterling, and have some tarnishing. They are in good condition other than the tarnishing. The box has some wear and one edge is folded under. A business card is also included from inside the box. These cameos are beautifully carved and measure about 1/2" wide and 3/4 tall. From a high end estate.