1934. United States. Works Progress Administration of Pennsylvania. Statement of responsibility: [Works Progress Administration of Pennsylvania]. Relief on most maps shown by contours and spot heights. WPA Project N... Works Progress Administration of Pennsylvania.
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1934. United States. Works Progress Administration of Pennsylvania. Statement of responsibility: [Works Progress Administration of Pennsylvania]. Relief on most maps shown by contours and spot heights. WPA Project N... Works Progress Administration of Pennsylvania.
1934. United States. Works Progress Administration of Pennsylvania. Statement of responsibility: [Works Progress Administration of Pennsylvania]. Relief on most maps shown by contours and spot heights. WPA Project N... Works Progress Administration of Pennsylvania.
1934. United States. Works Progress Administration of Pennsylvania. Statement of responsibility: [Works Progress Administration of Pennsylvania]. Relief on most maps shown by contours and spot heights. WPA Project N... Works Progress Administration of Pennsylvania.
1910. Sanborn Map Company. Hyndman, Bedford County, Pennsylvania, November 1910. 1 map on 4 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1925. Sanborn Map Company. Imperial, Allegheny County, Pennsylvania, August 1925. 1 map on 2 sheets : color ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. ... Sanborn Map Company.
1980. United States. Soil Conservation Service. Shows land use.; "September 1980."; Includes vicinity map. 129 x 102 centimeters 1:50,000. The Service (Harrisburg, Pa.).
1982. United States. Soil Conservation Service. Shows land use.; "January 1982." 109 x 68 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.).
1983. United States. Soil Conservation Service. Shows land use.; "January 1983."; Includes location map. 91 x 112 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.).
1983. United States. Soil Conservation Service. Shows land use.; "February 1983."; Includes location map. 122 x 95 centimeters Scale 1:50,000. The Service (Harrisburg, Pa.?).