Bollaron Truss, Former B O Railroad, 2 Through Spans over Patuxent River. Savage Factory, Maryland (467-185) Reproducible print, 1967 April Box 116 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Bosler, Wyoming (874-1704) Reproducible print, 1974 August Box 88 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Bosler, Wyoming (874-617), 1974 August Box 7 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Bosler, Wyoming (874-623) Reproducible print, 1974 August Box 88 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Bosler, Wyoming (874) Reproducible print, 1974 Box 112 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Boston and Main Railroad, Connecticut River, A Span through Lattice Truss. Northampton, Massacusetts (GFB-68-3094), 1968 Box 131 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Boston Maine Railroad Bridge, Connecticut River, Built 1888. Northampton, Massachusetts (GFB-68-4267-4) Reproducible print, 1968 Box 90 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Boston Maine Railroad Bridge, Connecticut River. Northampton, Massachusetts (No Number Extant) Reproducible print, 1968 Box 90 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Boston Maine Railroad Bridge over Connecticut River (GFB-68-3094) Reproducible print, 1968 Box 96 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…
Boston Maine Railroad Bridge over Connecticut River, Whipple Murphy Truss. Northampton, Massachusetts (GFB-68-4267-4) Reproducible print, 1968 Box 96 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011…