Bottle bases · reference-only clue set
Owens-Illinois diamond–oval–I base mark
Preview
This preview preserves a possible association with Owens-Illinois Glass Company, but independent evidence or visual-rights review is still incomplete. Use it as a lead, not a confirmed identification.
The mark
Public research previewMark-specific visual withheld
Use the written features and cited references until an independently reviewed visual is available.
- Maker/factory
- Owens-Illinois Glass Company
- Region
- United States
- Broad period
- 1929–1966
- Review state
- Preview; independent review incomplete
Observable features
1 clue- Diamond enclosing or surrounding an oval and I
Common misreads and confused-with clues
- Illinois Glass diamond-I
- Owens box-O
What the sources support
2 cited sourcesThe cited material supports a bounded maker or mark-family context and the source-transcribed date or reference note shown here. Exact variants require further review.
- Society for Historical Archaeology · reference · accessed 2026-07-29
- Glass Bottle Marks · specialist reference · accessed 2026-07-29
- Date basis
- Archaeology and specialist references document overlapping use; plant and date codes must be read with the logo.
- Material context
- container glass
- Source detail
- Source-linked reference
About this comparison
Withheld pending rights and review
Visual rights remain unresolved.
What this mark cannot settle
- The mark alone cannot establish authenticity.
- The mark alone cannot establish condition or provenance.
- The mark alone cannot establish an exact production date unless a specific variant is independently sourced.
- The mark alone cannot establish value.
This reference is a preview; independent identification and visual review are incomplete.