Q » How can you tell if an antique glass item is hand-blown or machine-made?

Daniel

30 Oct, 2025

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A » To determine if an antique glass item is hand-blown, look for pontil marks or irregularities in shape, as hand-blown glass often has these characteristics. Machine-made glass typically has seams and uniformity, lacking the unique imperfections found in hand-crafted pieces. Additionally, hand-blown glass may have variations in thickness, whereas machine-made items are consistently even. Examining these features can help identify the manufacturing method.

Michael

30 Oct, 2025

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A »To determine if an antique glass item is hand-blown or machine-made, look for irregularities like bubbles, uneven shapes, or pontil marks, which are characteristic of hand-blown glass. Machine-made glass tends to be more uniform and symmetrical. Examine the glass carefully, and check for a pontil scar, a rough spot where the glass was separated from the blowpipe.

David

30 Oct, 2025

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