1905. Sanborn Map Company. Mars, Butler County, Pennsylvania, November 1905. 1 map on 2 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1911. Sanborn Map Company. Mars, Butler County, Pennsylvania, February 1911. 1 map on 3 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1905. Sanborn Map Company. Martinsburg, Blair Co., Pennsylvania, September 1905. 1 map on 3 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1910. Sanborn Map Company. Martinsburg, Blair County, Pennsylvania, May 1910. 1 map on 3 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1905. Sanborn Map Company. Marysville, Perry County, Pennsylvania, July 1905. 1 map on 4 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1911. Sanborn Map Company. Marysville, Perry County, Pennsylvania, August 1911. 1 map on 5 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1909. Sanborn Map Company. Masontown, Fayette County, Pennsylvania, September 1909. 1 map on 2 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1921. Sanborn Map Company. Masontown, Fayette County, Pennsylvania, June 1921. 1 map on 6 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1928. Sanborn Map Company. Masontown, Fayette County, Pennsylvania, July 1928. 1 map on 9 sheets : color ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
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.