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Owens-Illinois and the Hoffmann-Hayman Crystalvac Jars 2026-07-26

Did the Hoffmann-Hayman Coffee Co. switch its Crystalvac jar production to Owens-Illinois before Three Rivers Glass shut down? The evidence — from H&H's own surviving-jar collectio…

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Inventory

Does the H&H 3-lb Crystalvac jar really carry a 1932 Owens-Illinois date code? 2026-07-26

One Hoffmann-Hayman three-pound Crystalvac jar bears the Owens-Illinois 'Diamond-Oval-I' mark read as plant 7 (Alton, IL) / year code '2' = 1932. A base photograph of the jar now C…

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Next: Corroborated by the base photo (plant 7, undotted date code 2 = 1932). Optional: confirm across more examples / an expert bench read before closing.

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Raw sources