vintage antique sterling KJS 830S made in Norway filigree earrings

Lovely vintage traditional Norwegian earrings made of 830 silver. Marked on the back 830S for the silver content and K.J.S. for the maker and MADE IN NORWAY. In excellent gently used vintage condition, no damage or repairs. They are silver textured filigree, Though definitely vintage, the date of origin is unknown, they are estimated to be from the mid 1900s. They have screw back findings and are in excellent condition.