Pair of Silver Double Pearl Screw-Back Earrings

Pair of screw back earrings
Likely Japanese, dating to the 1950s
Both earrings are marked "Silver"
Each earrings feature 2 genuine pearls; one measuring 6 mm and one measuring 6.9 mm
The pearls are in good shape. 
These lovely earrings are ready to wear!
Combined Weight: 3.6 grams 
Described by JLB