Jakob Faurvig Thorvaldsens Museum Ubekendt, THM I 2104 Portrait of a Roman man Production DateNo earlier than 100 - No later than 199 Type of Work / ObjectSignet Ring > Gem > Cameo Location Denmark > Copenhagen > Thorvaldsens Museum > Upper Floor > Room 37 Inventory NumberI2104 Catalogue NumberI2104 Catalogue Level / CollectionThorvaldsen's Collections > Collection of Gems (I) Motif / Theme Human > Man Additional Catalogue Information MaterialGemstone > OnyxGemstone > Chalcedony Dimension Height 1.5 cm Width 1.7 cm Art Form / CraftStonemasonry / Stonecutting Culture / Period Roman > Imperial Period (27 BC - 476) Owner Thorvaldsens Museum Acquisition ModeBequest from Bertel Thorvaldsen Acquisition DateMarch 24, 1844 Permalinkhttps://kataloget.thorvaldsensmuseum.dk/en/I2104 Sources / Literature Poul Fossing: The Thorvaldsen Museum Catalogue of the Antique Engraved Gems and Cameos, 1929, 1974