#makers-marks
3 articles · 8 raw sources · 1 inventory
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…
What glass colors did the Three Rivers Glass Company make? The documented answer is two: flint (colorless/clear) and amber. The American Glass Review trade directory recorded its o…
Reference catalog of Three Rivers Glass Co. maker's marks, built on the Bottle Research Group's 2019 Encyclopedia of Manufacturer's Marks chapter (Lockhart, Schriever, Brown, Linds…
Inventory
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…
Next: Corroborated by the base photo (plant 7, undotted date code 2 = 1932). Optional: confirm across more examples / an expert bench read before closing.
Raw sources
- Crystalvac jars: Three Rivers vs. Owens-Illinois — Hoffmann-Hayman Coffee Co. collection pages · 2026-07-26
- Three Rivers Glass Bottles — Hoffmann-Hayman Coffee Co. online catalog (full per-entry capture) · 2026-07-26
- Three Rivers Glass Bottles — Hoffmann-Hayman Coffee Co. online catalog · 2026-07-26
- Photograph: base of the H&H 3-lb Crystalvac jar showing the Owens-Illinois mark · 2026-07-26
- Three Rivers Glass Co. — Encyclopedia of Manufacturer's Marks on Glass Containers (Bill Lockhart, Beau Schriever, Bob Brown, Bill Lindsey & Carol Serr, Bottle Research Group, 2019) · 2026-07-26
- Hazel-Atlas Glass Co. — Encyclopedia of Manufacturer's Marks on Glass Containers (Lockhart, Schriever, Lindsey & Serr, with Jay Hawkins) · 2026-07-26
- Owens-Illinois: Texas presence, plant codes, and Diamond-O-I dating (Lockhart / SHA Bottle Research Group) · 2026-07-26
- Hazel-Atlas Glass Co. — Encyclopedia of Manufacturer's Marks (Lockhart, Schriever, Lindsey & Serr) — acquired-mold passages · 2026-07-26