Circa 1970s Signed Sarah Coventry Blue Rose Porcelain Ring

In excellent condition Vintage item , pls review all photos carefully SARAH COVENTRY 1975 Blue Rose ring. Western antique jewelry This piece is included in the illustrated book published by the Sarah Coventry collector. It is the Blue Rose series produced in 1975. ● Signed: SARAH ▪️Split shaft ● It was about 1975's ● Commodity source: United States ● Size: The size of the ring face is about 2 x 1.5 (cm), and the fine adjustment of the opening ring is limited. Hong Kong Ring Wai #13, US Ring Wai #6, the inner ring diameter is about 17 mm ● Material: Alloy ( somewhat tarnished) + Porcelain No scratches to surface , I’m amazing well kept condition Any questions pls ask Open to reasonable offers Bundle to save