Here is a gorgeous little painted enamel flower ring, in an adult finger size, by the leading Norwegian silversmithy, David-Andersen (see bio). The little blue flower has been painted on the white guilloche enamel background.  The ring shank is open at the back, so may be adjustable

Condition: Excellent, no visible damage

Marks: Scales, D-A,  925S, Sterling, Norway

Size, to fit finger size:  UK N, US 7 , Eu 54-55

Year: 1960s