How do I date an old wine glass?

Dating relies on observing form, pontil marks, and the style of cutting. Georgian pieces often display different bowl proportions and knopped stems compared to later Victorian items. Material composition also assists in attribution, as lead content and glass colour shift across the 18th Century, 1850, and 1870 periods.

Are these glasses safe for daily use?

These pieces function adequately for drinking, though older lead crystal requires careful handling. Hand washing prevents thermal shock and protects delicate rims from damage. Avoiding harsh detergents preserves the brilliance of the cut surface over time.

What is the difference between glass and crystal?

Crystal contains added lead oxide, which increases weight, brilliance, and softness for cutting. This material allows artisans to produce sharper facets than standard soda-lime glass. Lead glass also rings when struck gently, a characteristic often used to test composition.

Why do some glasses have pontil marks?

A pontil mark shows where the glassmaker held the vessel with a rod during manufacturing before snapping it off. Older pieces frequently retain this rough or ground scar underneath the base. Its presence confirms traditional hand-blown production methods rather than modern machine moulding.