
bottleinfo.historicbottles.com
From 1954
Owens-Illinois Glass Company
Upright I enclosed by an oval, with the diamond removed. This Pepsi bottle illustrates the later logo, alongside separate customer, date and mould codes.
Identification guide
Bottle date codes must be read in the identified glasshouse’s system; a mould number or patent date is not a universal year code.
In a common Owens-Illinois arrangement, the maker logo is central, the plant code is at the left and a year code is at the right. A one-digit year repeats across decades; the logo form and bottle type help select the decade. Some liquor bottles use permit-number arrangements instead.
| Position | Typical role |
|---|---|
| Left of maker logo | Plant code; some liquor arrangements differ |
| Centre | Maker logo |
| Right of logo | Manufacturing-year code |
| Other base number | May identify mould or product |
Record the exact logo and all surrounding numbers before reading the right-hand code. A dot is not a universal decade rule. Use the plant history, bottle form and closure with the code when more than one decade fits.