Publication: Glass Trade Directory
Pittsburgh, PA, United States
PRESSED AND BLOWN WARE FACTORIES
IN UNITED STATES AND CANADA.
Below is a complete list of the pressed and blown ware factories 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 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 it makes green and amber ware; and C, that flint, green and amber ware is turned out. The figures after this are to designate in a gen