A tantalus is a locking wooden frame that holds spirit decanters securely in place. It allows hosts to display their bottles while keeping the contents locked away from servants or guests. The metal bar across the top prevents the glass stoppers from being removed until a key is turned in the lock.

How do I date these decanters?

Dating relies on observing the glass manufacturing techniques, colour palettes, and accompanying metal mounts. Victorian pieces often feature deep hand-cutting and rich coloured glass. Matching hallmarks on silver collars or the style of the wooden tantalus framework also help narrow down the decade of production.

Are coloured glass decanters authentic?

Coloured glass vessels in ruby, amethyst, blue, and green tones were widely produced during the nineteenth century. Makers achieved these rich hues by adding various metallic oxides to the molten glass. Such coloured pieces were particularly fashionable for serving distinct spirits and cordials on dining tables.

How should I clean them?

Cleaning antique glass requires gentle hand washing in warm water with mild detergent. Avoid sudden temperature changes to protect the fragile antique material. Metal mounts and silver collars should be polished carefully with a soft cloth while avoiding harsh chemical cleaners near the glass.