Here is a fabulous modernist ring by the renowned Danish silversmith Bent Knudsen (see bio) for the Danish silversmithy Hans Hansen (see bio), for whom he worked before setting up his own workshop in 1956 and then occasionally afterwards.  There is a bangle in the same design

Condition:  excellent, no visible damage

Marks: HaH 925S, Denmark

Size: to fit finger size, UK  N,  US 7,  Eu 54, but as the back is open, a  thicker finger could easily squeeze in

Year:  In the 1970 catalogue, no 0093