NATIONAL GLASS CO. No. .510 (OMN) nat/river
• AKA: Bull's Eye and Button
• National Glass Company (Riverside Works) (Wellsburg-WV, Co. Operated: 1899-1904), Introduced: c1900 Introduced
• NOTE: ID updated by Sid Lethbridge, 2017.
• Motifs: (Circles/Balls), (Arches/Crescents), (Buttons)