Vintage Wedgwood Sterling Silver Black Cameo Clip-on Earrings

From my research this exact style of black cameo earrings framed in sterling silver are somewhat rare for Wedgwood jewelry. I have actually never come across a pair of Wedgwood earrings, only brooches. These are in great condition, they have been tested and confirmed Sterling. Marked Silver JW on the rim. The back is marked Wedgwood Made in England F 72. I have read that the numbers correlate to the year they were produced, but I am not certain if true. About .8” diameter and in great condition! impeccable for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.