Vintage Sarah Coventry Green Jade Jewelry Set Marked 1/20 12k filled

Vintage Sarah Coventry Green Jade Set with a brooch (can be worn as a pendant), screw back earrings, & 6" bracelet (it has a safety chain also). The pieces are marked 1/20 12k filled. The brooch is approximately 1"x1.5" in size, and has a small loop to wear on a chain also. Photos taken in natural light and the set is in great used condition, so please review the photos. This would look great with jeans or dressed up, and it is such a timeless look.