Master's mark "Star" for Hans Troschel the younger, Nuremberg (1599-1634), circa 1620
Horizontal and vertical sundial with Latin motto: "Tempus terit omnia" ("Time wears away all things")
Case: bone, lavishly engraved, cover with firegilt moondial indicating the time from moonrise to moonset, inner baseplate with horizontal clock and compass.
Hans Troschel the Younger was the son of Hans Troschel the Elder and learned the making of ivory sundials and compasses from his father, before training in the art of engraving with Peter Isselburg (1580-1630); he created etchings portraying citizens of Nuremberg and illustrated a booklet with advice for young travellers that was inspired by designs of French illustrator and cartoonist Jacques Callot. On February 28, 1614 Troschel married Ursula Glatzman of Neumarkt (Upper Palatinate); the couple had at least one son. In 1620 he lived in Ledergasse in Nuremberg; in 1624 Troschel moved to Rome and liver there until his death on May 19, 1628.
錶殼 非常好, 使用過, 多處極細的裂紋