1900. Sanborn Map Company. Insurance maps of Washington, Washington Co., Pennsylvania, May 1900. 1 map on 27 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50... Sanborn Map Company.
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1904. Sanborn Map Company. Insurance maps of Washington, Washington County, Pennsylvania, July 1904. 1 map on 33 sheets : col. ; sheets 65 x 54 cm. + title sheet. Scale appr... Sanborn Map Company.
1909. Sanborn Map Company. Insurance maps of Washington, Washington County, Pennsylvania, Dec. 1909. 1 map on 42 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600... Sanborn Map Company.
1914. Sanborn Map Company. Insurance maps of Washington, Washington County, Pennsylvania, Dec. 1914. 1 map on 37 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600... Sanborn Map Company.
1893. Sanborn Map Company. Scale 1:600. 50 ft. to 1 in. Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers. Fire insuran... Sanborn-Perris Map Co.
1898. Sanborn Map Company. Scale ca. 1:600. Also shows factories, commercial occupancy of buildings, property boundaries and house and block numbers. Fire insurance map hand ... Sanborn-Perris Map Co.
1910. Sanborn Map Company. Scale 1:600. 50 ft. to 1 in. Sheet 1 includes symbol key, index, and index map. Partial cadastral map. Fire insurance map hand colored to show buil... Sanborn Map Company.
22718. Washington Territory
1879. United States. General Land Office. J.A. Williamson, Commissioner General Land Office.; "Longitude west from Greenwich and Washington." 56 x 73 centimeters Scale 1:950,400 General Map... The Office (Washington).
1887. Morton, Robert H. and United States. General Land Office. Relief shown by hachures and spot heights. "Compiled from the official records of the General land Office and other sources ..." Prime meridians: G...
1923. Olsen, William. Not drawn to scale; 1 view; 49 x 75 cm Washington (D.C.)--Aerial views.