Here is a wonderful Sterling silver ring by the acclaimed Finnish silversmith Matti Hyvarinen for his company Sirokoru (see bio)  . It is silky smooth on one side of the swirl, polished on the other. 

Condition: Excellent: no visible damage, clean

Marks: Made in Finland, Sirokoru, MJH, 925,  Turku,  Y 7.  Also stamped NH. bt - possibly by a previous owner?

Size:  to fit finger size  UK P, US 8, Eu 57. 

Year:  1976