COLUMBIA (OMN) tar
Tarentum Glass Company (Tarentum-PA, Operated: 1894-1918), Introduced: 1899
• NOTE: Sid Lethbridge 2020: "Columbia was incorrectly called Harvard by earlier glass authors due to errors in illustrated advertisements that mislabeled a Columbia creamer as Harvard. The error was corrected in later versions"
• Motifs: (Bands/Rings), (Beads/Balls), (Notches/Slits)