Publication: American Glass Trade Directory
Pittsburgh, PA, United States
GENERAL FLINT FACTORIES.
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 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 letter C appearing before the word "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 glass and C signifies that amber ware is turned out. The figures after this are to designate in a general way the different lines of ware made at each plant.
The figure 1 signifies prescription, druggists or perfumers ware; 2, beers, sodas and minerals or 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.
The letter G indicates that a general line of tableware is manufactured; H, general line of blown ware; I, off-hand or paste mold chimneys; J, shades, globes and electric glassware; K, paste mold tumblers, stemware, bar goods, etc.; L, colored ware, decorated ware or novelties; M, cut glass