#crystalvac

1 articles · 2 raw sources · 1 inventory

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…

three-rivers-glass owens-illinois hoffmann-hayman-coffee-company crystalvac makers-marks dual-sourcing+1

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…

question active p2

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

question owens-illinois hoffmann-hayman-coffee-company crystalvac makers-marks three-rivers-glass+1

Raw sources

Crystalvac jars: Three Rivers vs. Owens-Illinois — Hoffmann-Hayman Coffee Co. collection pages · 2026-07-26
Photograph: base of the H&H 3-lb Crystalvac jar showing the Owens-Illinois mark · 2026-07-26