GREENSBURG GLASS CO. .No. .28 (OMN) by Greensburg Glass Company (Company Operated: 1889-1892), c1890 Introduced
NOTE: 2020: convoluted company history, see the comparison chart for full details. Similar if not identical to Central No. 812.
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Shape: Catalogue/Ads
Contributor: Sid Lethbridge

Shape: Pattern Comparison
Contributor: Sid Lethbridge

Shape: Tumblers
Contributor: Clark Adams