Pitcairn Varnish Company (Milwaukee, Wis., Newark, N.J.), 1913- Box 230, Folder 2819 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pitt Health Trap, Plumbing, and Ventilating Company (New York, N.Y.), undated Box 230, Folder 2820 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pittsburgh Emery Wheel Company (Rochester, Pa.), 1915- Box 230, Folder 2821 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pittsburgh Plate Glass Company (Pittsburgh, Pa., etc.), 1905- Box 230, Folder 2823 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pittsburgh Steel Company (Pittsburgh, Pa.), 1948- Box 230, Folder 2824 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pittsburgh Steel Products Company (Pittsburgh, Pa.), 1941-1947 Box 230, Folder 2825-2826 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pittsburg Instrument and Machine Company (Pittsburg, Pa.), 1915- Box 230, Folder 2822 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Pixii, Père et Fils (Paris, France), 1835-1852 Box 230, Folder 2827 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Plamondon, A., Manufacturing Company (Chicago, Ill.), 1923- Box 230, Folder 2828 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…
Platt and Washburn Refining Company (New York, N.Y.), 1916- Box 231, Folder 2837 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978…