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Dating glass wine bottles

From onion to cylinder — bottle shape is a timeline.

English wine bottle evolution is a textbook sequence: globular 'shaft and globe' (mid-17th century), squat 'onion' (c. 1680–1720), 'mallet' and transitional forms, then increasingly tall cylinders from the mid-18th century as binning wine on its side took hold.

Manufacturing details refine the date: a sand or glass-tipped pontil scar on the base is earlier; applied string rims change profile by decade; seed bubbles and dark 'black glass' (deep olive) mark early hand-blown bottles. Moulded seams and embossing belong to the 19th century, machine-made lips to the 20th.

Sealed bottles — with an applied glass blob stamped with a name, crest, or date — are the prizes, tying a bottle to a person or tavern. Record height, base diameter, colour, pontil evidence, and seam positions; even a base or neck fragment carries most of these clues.

From the guide library inside Collectors Catalogues, a free app for cataloguing antiques and finds with honest, museum-grade records.

More on glass

Identifying ancient glass — Iridescence, bubbles, and weathering.

Identifying trade and glass beads — Drawn, wound, and chevron beads that travelled the world.

Identifying Roman glass — Blue-green vessels, ribbed bowls, and iridescence earned underground.

Identifying window glass — Crown bullseyes, cylinder sheets, and painted church fragments.

Identifying vessel glass fragments — Wine glass stems, phials, and the anatomy of broken glassware.

Identifying inkwells, stoppers, and small glass objects — The little glass things that survive whole.

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