Pencoyd Iron Works

Wrought Iron and Steel in Construction: Convenient Rules, Formul� and Tables for the Strength of Steel Shapes Used as Beams, Struts, Shafts, Etc., Made by the Pencoyd Iron Works, A. & P. Roberts Compa

Pencoyd Iron Works

$24.09

Steel in Construction. Convenient Rules, Formulae and Tables for the Strength of Steel Shapes Used as Beams, Struts, Shafts, Etc., Made by the Pencoyd Iron Works, A. & P. Roberts Company, Philadelphia

Pencoyd Iron Works

$34.75 - $38.95

Wrought Iron And Steel In Construction: Convenient Rules, Formulae, And Tables For The Strength Of Wrought Iron And Steel Shapes Used As Beams, Struts, Shafts, Etc

Pencoyd Iron Works

$23.95 - $29.62