How to date old bottles
Date an old bottle by checking several clues together: seam height, lip type, pontil or base mark, closure, color, embossing, label, and product category.
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- Seams that stop below the lip usually point earlier than seams that run through the lip.
- Applied lips, tooled lips, pontil marks, cork closures, and screw threads each narrow the date range.
- Use patent dates, base marks, and labels carefully. They support a date; they do not always state it.
Key value drivers
Dating matters because age can change value only when it aligns with rarity, category, condition, and demand. A common early bottle may be modest, while a later branded bottle can matter if collectors want it.
Note: We couldn’t find enough auction records that directly match How to date old bottles to publish a defensible price table. If you are valuing a specific item, include its maker, model, material, photos, and condition so the search can be narrowed.
What similar items actually sold for
The current auction search does not contain at least three clean, directly matched sales for How to date old bottles yet. If you’re valuing a specific item, use the free estimate flow so the search can be narrowed by maker, material, photos, and condition.
| Image | Description | Auction house | Date | Lot | Reported price realized |
|---|---|---|---|---|---|
| No relevant auction comps found for this topic right now. | |||||
Disclosure: prices are shown as reported by auction houses and are provided for appraisal context. Learn more in our editorial policy.
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Condition and authenticity cautions
Do not date from color alone. Sun-purpled glass, reproduction bottles, repaired lips, replaced closures, and patent-date confusion can lead to the wrong period and wrong value assumption.
Photo checklist
- Full bottle, lip, seam path, base, closure, embossing, label, color, and scale reference.
- Close-ups of pontil, mold marks, date codes, patent marks, chips, cracks, and any paper label.
Related guides
Collectibles guides, how to identify old bottles, bottle bottom numbers, old bottle identification, value of old bottles, free bottle appraisal app.
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