Here is a frame pack by David T. Abercrombie Co. The address of Chambers St. (previously 311 Broadway) along with the style identifies this as a pack probably dating to the late 1940s-early 1950s. This European style pack, often called a ski pack, alpine pack or Norwegian Bergens Meis, features one main compartment, three exterior pockets and a zippered map pouch. Straps on the sides and bottom allow attachment of extra gear. As with all of the Abercrombie's Camp gear, the stitching, edge piping and overall construction/attention to detail are superb.