Here is a delightful silver modernist ring by the esteemed Danish silversmith Carl Ove Frydensberg, whose studio in Copenhagen was registered from 1949 to 82. The ring band is flat, and is set with two small blue cabochons., possibly of glass.
Condition: Excellent. Some wear to the cabochons visible under magnification
Marks: 830S C O F
Size; to fit finger size: UK N-O, US 7, Eu 54