Construction Supplies 183 The Pennsylvania Steel Company Maryland Steel Company Mannfa^nrers of Steei Rails, Blooms, Billets and Forgings, Frogs, Switches and Crossings MANARD ANVIL FACE FROG Design 153 — Patented … Easy riding, best -wearing, heaviest type of frog made. " Perfect Surface" feature, and solid block with point and wheel bearing surfaces of special "Manard" steel, insure maxim-um wear. Crossings and street railway special track work of "Manard" construction in use by the leading steam and…
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Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
