Publication: Directory of the Glass Trade
Pittsburgh, PA, United States
Pressed and Blownware Factories
United States and Canada.
Below will be found a complete list of pressed and blownware plants in the United States and Canada active or temporarily out of operation or in the course of erection. In giving the capacity of a plant, F is used for furnace and P for pots, as: 1 F, 10 p, means one furnace of 10 pots. The C before a tank means a continuous tank, and the letter D means a day tank. R is used to designate the number of ring holes, which gives the reader an idea as to the capacity of the plant.
The capital A after the capacity of a factory means it makes flint ware; B means green and amber ware; and C, that flint, green and amber ware is turned out. The figures after this are to designate in a general way the varieties of ware made at each plant. 1, is prescription and druggists' ware; 2, beers, sodas and minerals, wines and brandies; 3, flasks or proprietary medicine goods; 4, milk jars; 5, fruit jars; 6, packers and preservers ware; 7, machine-made jars or bottles; 8, insulators, or prism lights; 9, turn mold ware.
Letter G, general line of tableware; H, general line of blown ware; I, off-hand or paste mold chimneys; J, shades, globes and electric goods; K, paste mold tumblers, goblets, etc.; L, colored ware or novelties; M, cut glass, cutting blanks and artistic glass. X indicates that the factory contains a mold making shop. A star (*) appearing before the name of a company means that the