Many cut glass pieces are marked with a maker's mark or identifier ... tell you a bit about the manufacturer. Related: ...

What antique glassware brands should you be aware of ... same style—and achieved critical acclaim and commercial success— and signed with marks that are hard to identify.

But how do you go about identifying antique and ... quality of the glass itself – its weight, the thickness of its walls, its color, its surface – before turning to any mark or signature ...