How can I tell hand-blown antique glass from industrially moulded pieces?

Hand-blown glass shows slight variations in wall thickness, small trapped air bubbles and a pontil mark on the base where the glassblower's rod was attached. Industrially moulded pieces are perfectly uniform with no such irregularities — a reliable distinction once you know what to look for.

Which are the most collectible names in antique French glassware?

Gallé and Daum (both from Nancy) define Art Nouveau glass collecting. For crystal, Baccarat and Saint-Louis have been the benchmark names since the 19th century. René Lalique dominates Art Déco mould-pressed glass. A confirmed signature from any of these makers underpins solid long-term value.

What prices should I expect when buying antique glassware?

Prices range from a few dozen pounds for an unsigned 19th-century glass or carafe, to a few hundred for a piece from an identified manufacturer, up to several thousand for a signed Gallé or Daum vase. Rarity of decoration, period and condition are the three main value drivers.

How should I clean and care for antique glassware?

Always hand-wash in lukewarm water with a mild detergent — never in a dishwasher. Avoid sudden temperature changes. For enamelled or gilded pieces, use no abrasive products. Dry with a soft lint-free cloth and store away from direct sunlight to prevent colour fading or thermal stress.

Does a chip or crack significantly reduce the value of antique glassware?

Yes. Any structural damage — chip, crack or restored break — can reduce market value by 50% or more on signed pieces. Examine the piece under raking light and UV before buying, and always ask the dealer to confirm condition in writing as part of the sale documentation.