Use manufacturing clues together rather than trusting one feature in isolation. Begin by recording the bottle exactly as it appears before trying to assign a date or price.
Identification checklist
- Measure overall height, base dimensions, mouth diameter, and approximate capacity.
- Describe the glass color in daylight against both white and black backgrounds.
- Trace each mold seam from the heel through the shoulder, neck, and finish.
- Photograph the base, including numbers, symbols, scars, and embossing.
- Transcribe wording exactly, preserving punctuation and unusual spelling.
Dating approach
Manufacturing evidence provides a range rather than an automatic exact year. Pontil scars, tooled finishes, automatic seams, suction scars, closure patents, and maker histories overlap. Use several clues together and test the conclusion against the bottle’s intended use.
What affects collector interest
Demand may be influenced by rarity, color, embossing, graphics, local history, unusual form, condition, provenance, and whether a specialized collector community actively seeks the category. A visually striking bottle is not necessarily rare, and a plain bottle can be important when tied to a scarce business or historical context.
Research workflow
- Search exact embossed phrases and place names.
- Compare bottle form and finish with technical references.
- Research the company, bottler, pharmacy, dairy, or glasshouse.
- Review completed sales for the same variant and condition.
- Consult a category specialist before assuming exceptional rarity.
Collector identification and purchase checklist
Date the manufacturing method before assuming a decade. A mold seam, pontil scar, closure and embossed name each supplies a different kind of evidence; none gives an exact year on its own.
- Photograph the base and entire side seam, then compare how far the seam travels up the neck.
- Record whether the finish looks applied, tooled or machine-formed; alterations and damage can confuse an isolated clue.
- Research the embossed bottler, location and logo separately. Business dates narrow possibilities but do not necessarily date the glass.
Compare matching collectibles on eBay
Compare seller photographs, authenticity claims and condition. Current listings are shopping options, not independently authenticated examples.
Price research: compare completed sales. A sold price for a different item is not an appraisal. Qualifying purchases through shopping links may earn this site a commission.