German wedding ring from 1600-1650. Two hands grasp an enameled diamond-set heart when the ring is worn, but when the ring is free from the finger, you can see it is actually comprised of three separate rings that rotate open to reveal secret engraving. On the insides of the shank, a portion of the marriage vows reads in German: “My beginning and my end” and “What God has joined together let no man put asunder"... the ring is 3 styles combined, posy, gimmel, and fede.
10 Creative and Unusual Engagement Rings | Neatologie
1570: 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. Is it weird that I want one of these? So much more elegant than checking your phone.