The story
Founded as Dunbar Flint Glass Company in 1912, the company originally produced lamp chimneys but by the 1920s the company had expanded into giftware, bareware, tableware, and lighting goods. In 1923, the company was renamed to the Dunbar Flint Glass Corporation, and later Dunbar Glass Corporation. By 1953, the company was only producing glass tubing, before production ceased entirely in 1955.
Some of the company's craftsmen formed Kanawha Glass Company when the Dunbar Glass company folded.
From Wikipedia’s article on Dunbar Glass, shared under CC BY-SA 4.0.3