themacabrenbold:A rare 16th century gold sundial and compass ring, possibly German, The hinged oval
themacabrenbold:A rare 16th century gold sundial and compass ring, possibly German, The hinged oval bezel designed as a seal and engraved with a coat of arms, opening to reveal a sundial and compass, on a plain gold hoop, dimensions of bezel 1.8x2.0cm., ring size V more here -- source link