1926. Sanborn Map Company. Scale ca. 1:600 Partial cadastral map. Sheet 1 includes symbol key, index, and location and index maps. Fire insurance map hand colored to show bui... Sanborn Map Company.
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1891. 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.
1914. 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 Map Company.
1902. Sanborn Map Company. Donora, Washington Co., Pennsylvania, October 1902. 1 map on 4 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1909. Sanborn Map Company. Donora, Washington County, Pennsylvania, October 1909. 1 map on 9 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1914. Sanborn Map Company. Donora, Washington County, Pennsylvania, November 1914. 1 map on 10 sheets : col. ; sheets 65 x 54 cm. + 1 title sheet. Scale approximately 1:600.... Sanborn Map Company.
1921. Sanborn Map Company. Donora, Washington County, Pennsylvania, September 1921. 1 map on 12 sheets : col. ; sheets 65 x 54 cm. + 1 title sheet. Scale approximately 1:600... Sanborn Map Company.
1929. Sanborn Map Company. Donora, Washington County, Pennsylvania, September 1929. 1 map on 17 sheets : color ; sheets 65 x 54 cm + 1 title sheet. Scale approximately 1:600... Sanborn Map Company.
1892. 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 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.