OPEN O'S (AKA) by National Glass Company (Northwood Works) (Indiana-PA, Co. Operated: 1899-1904), c1903 Introduced
• AKA: Heart Handled Open O's
NOTE: This pattern was continued by Dugan Glass Co. 1904.
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Shape:
Contributor:

Shape: Novelty Worked
Contributor: Bill Banks

Shape: Novelty Worked
Contributor: Brian Widner, May Ridolphi Eason, Roger Haworth, Jennie Klecker

Shape: Novelty Worked
Contributor: Bill Banks (1-4), Chip Honse

Shape: Novelty Worked
Contributor: Vanessa Fronce, Nancy Dawson

Shape: Catalogue/Ads
Contributor: Paul Kirk Jr.

Shape: Catalogue/Ads
Contributor: Paul Kirk Jr.