Ribs/Columns;
DUGAN GLASS CO. No. 1016 (OMN)
• AKA: Spiralex; Twisted Ribs; Wide Rib
Dugan Glass Company (Indiana-PA, Operated: 1903-1913), Introduced: ca. 1912

• Motifs: (Ribs/Columns), (Swirls/Spirals)