NATIONAL GLASS CO. No. 0519 (OMN)
• AKA: Inverted Eye
• National Glass Company (Riverside Works) (Wellsburg-WV, Co. Operated: 1899-1904), Introduced: 1902 Introduced
• NOTE:
• Motifs: (Circles/Balls), (Arches/Crescents), (Loops/Ribbons)