Railroad Locks, Keys, and Plaque

American, 19th-20th century. A collection of forty-nine pieces of railroadiana items, including fifteen locks (seven of which have accompanying key) of various shapes and for several companies, including the Pennsylvania Railroad, the Cleveland, Cincinnati, Chicago & St. Louis Railway (C.C.C. & St. L), and the Delaware, Lackawanna & Western Railroad; thirty-three loose keys for various companies, including the Pennsylvania Railroad, the C.C.C. & St. L Railway, and the New York Central Railroad; and one plaque from the Pennsylvania Railroad; plaque 6.5 x 6.75 in.