UNITED STATES GLASS CO. No. 9944 (OMN) by United States Glass Company/Pittsburgh-PA (Company Operated: 1891-1962) , c1911 Introduced
NOTE: Sid Lethbridge 2022 - US Glass held the patent for this patented screw insert.

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Shape:Lamp & Lamp Shades
Contributor: Kathleen Harmon Foutz

Shape:Lamp & Lamp Shades
Contributor: Kathleen Harmon Foutz

Shape:Lamp & Lamp Shades
Contributor: Kathleen Harmon Foutz

Shape:Lamp & Lamp Shades
Contributor: Kathleen Harmon Foutz