c. 1900's victorian era interior residential electrolier replacement shade. features a standard 3 1/4 inch fitter opening. comprised of blue opalescent swirl art glass. fabricated by the phoenix glass company. remains in great overall condition. the phoenix glass company was organized in 1880, by andrew howard, formerly connected with the union line of the pennsylvania railroad company, with a capitalization of $30,000. the company was reorganized in 1891, the capitalization being $700,000. its plant was located at monaca, beaver county, pa., on the new york central lines, and occupied a space of about ten acres. the company was originally organized for the manufacture of specialties, but later made a very large line of lamp chimneys, and was the first company west of the allegheny mountains to produce opalescent and rich cut glass. by the early 20th century, they were the largest exclusive manufacturers of illuminating glassware in the united states, to which they devoted their entire efforts. measures approximately 6 inches in diameter.