TREE OF LIFE (AKA) port by Portland Glass Company/Portland-Maine ( Company Operated: 1863-1873), c1867-1873 Introduced
NOTE: "PGCo Patent" on the base.
NOTE: Sid Lethbridge: The only pieces that we know for sure to be Portland’s version of (aka) Tree of Life are those that are signed P G Co. There were other versions made by competing firms and some of Portland’s moulds were acquired by Hobbs and reworked.NOTE: Sid Lethbridge: The Portland version of Tree of Life which is found signed "P G Co. Patent" has a very specific design that distinguishes it from the other makers. The Portland version is pressed with very distinctly woody vines having a bark like texture. In the space between the vines, there is a pattern made up of angular "frost crystals".

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Shape:Cake Stands/Plates
Contributor: Jason Burgess

Shape:Celery Vases
Contributor: Anna Lunzer, Beth McElhiney , Jim Thielen, Bill Vaile

Shape:Comport/Compotes
Contributor: Beth McElhiney (1,2), Brady Fitts, Bill Banks

Shape:Comport/Compotes
Contributor: Sara Fisher, Rebecca Freeman, Sandy Wilkin, Jeannie Symington

Shape:Creamers
Contributor: Sid Lethbridge, Bill Vaile

Shape:Sugars
Contributor: Winfred Huff, Bill Vaile

Shape:Trays, Water/Ice Cream
Contributor: Brady Fitts

Shape:Butter, Cheese, & Honey Dishes
Contributor: Beth McElhiney

Shape:Stemware
Contributor: Jayne MacDonald

Shape:Stemware
Contributor: Bill Vaile, Derick McGrath

Shape:Pattern Comparison
Contributor: Sid Lethbridge

Shape:Extra Information
Contributor: Sid Lethbridge

Shape:Pattern Detail
Contributor: Rebecca Freeman, Brady Fitts, Bill Banks, Brady Fitts

Shape:Pattern Comparison
Contributor: Darryl Reilly

Shape:Cake Stands/Plates
Contributor: Jason Burgess

Shape:Standards (Foot & Stem)
Contributor: Jason Burgess

Shape:Bowls & Berry Sets
Contributor: Brady Fitts 3D sauce marked PG Patent

Shape:Bowls & Berry Sets
Contributor: Brady Fitts 3D sauce marked PG Patent