This original bronze metal sign is from the PITTSBURGH - DES MOINES STEEL CO. It's engraved ~ 1942 ~ at the top and says CONSTRUCTING ENGINEERS - PITTSBURGH, PA. DES MOINES, IA.
The oval sign measures 4 3/8 inches across by 6 inches high. It's 1/4 inch thick and weighs 396 grams (just under 14 ounces). There's a hole at top and bottom of the sign. There's a slight wobble in the sign which we believe is the result of it being ripped off a building or something that it had been firmly affixed to.
The front of the sign looks like it may have been polished but the back retains much of its original patina. It's in excellent vintage condition. A nice rare old original sign. Here's some company history...
The Pittsburgh-Des Moines Steel Company (originally the Des Moines Bridge and Iron Company and often referred to as Pitt-Des Moines Steel or PDM) was an American steel fabrication company. It operated from 1892 until approximately 2002 when its assets were sold to other companies.
The company began as a builder of steel water tanks and bridges. It also later fabricated the "forked" columns for the World Trade Center in the 1960s and was the steel fabricator and erector for the Gateway Arch in St. Louis. A number of its works are listed on the National Register of Historic Places.
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1942 Pittsburgh Des Moines Steel Co. Bronze Sign