Why does this ring open? Two interlaced gold hoops reveal a marriage inscription inside. A Southern German gimmel ring, made in the second half of the 1500s. Look closely at the join between the gems. Photos: The Met, public domain. #ArtSeal

Could you drink from this without spilling? This Liverpool puzzle jug dates to the 1700s. Puzzle jugs hide a channel through the handle and rim. Cover the spare holes and sip through one spout. Would you have worked it out? #ArtSeal #PuzzleJug

Could you drink from this without spilling? This Liverpool puzzle jug dates to the 1700s. Puzzle jugs hide a channel through the handle and rim. Cover the spare holes and sip through one spout. Would you have worked it out? #ArtSeal #PuzzleJug

Erickson bought this Rembrandt from Duveen for $750,000 in 1928, sold it back for $500,000 in 1930, then bought it again for $590,000 in 1936. The Met records all three sales. Save this art-history detour. #ArtSeal #Rembrandt #ArtHistory

Her snakes are made of glass. Tiny glass pieces build this Medusa’s face, hair and snakes. Castellani, before 1888; 7.1 cm wide, set in gold. Share with someone who loves jewelry. Photo: The Met, CC0. #ArtSeal #Micromosaic #ArtHistory

This tiny silver box held a sponge soaked in aromatic vinegar. Made in London in 1803, its pierced grille let the scent escape. Watch the reveal and save this detail for your next museum visit. #ArtSeal #Silver #ArtHistory

This one-inch silver box held a vinegar-soaked sponge. Its scent was intended to mask unpleasant smells. William Thompson II made it in London in 1803. Share with someone who loves tiny objects. #ArtSeal #Silver #ArtHistory

Buying vintage Wedgwood jasperware? Check the impressed maker’s name, inspect the raised decoration, and look beneath the lid for damage or repairs. Save this guide for your next find. #ArtSeal #Jasperware #Ceramics