Front:
J-1
PENNSYLVANIA
9A-H2434
© CURT TEICH & CO. INC.
Back:
Johnstown, the cradle of the steel industry,
has contributed to the development and ex-
pansion of steel throughout the world.
Johnstown developed and advanced the Bes.
semer process, (the Pioneer Converter is dis-
3 played at Bethlehem's office, Locust St.) the
three-high roll system, refinements in Open
Hearth Process, and numerous other processes.
The most recent development Bethanizing, an
advanced method of applying zinc coating to
metal bases.
MINSKY BROS. & Co., PUBLISHING DIVISION, PITTSBURGH, PA.
"C.T.ART-COLORTONE' REG. U.S. PAT. OFF.
