1921. Sanborn Map Company. Natrona, Allegheny County, Pennsylvania, December 1921. 1 map on 15 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
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1929. Sanborn Map Company. Natrona, Allegheny County, Pennsylvania, October 1929. 1 map on 18 sheets : color ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in.... Sanborn Map Company.
1908. Sanborn Map Company. Oakdale, Allegheny Co., Pennsylvania, July 1908. 1 map on 4 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1915. Sanborn Map Company. Oakdale, Allegheny County, Pennsylvania, March 1915. 1 map on 5 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1924. Sanborn Map Company. Oakdale, Allegheny County, Pennsylvania, June 1924. 1 map on 8 sheets : color ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1895. Sanborn Map Company. Oakmont, Allegheny Co., Pa., May 1895. 1 map on 2 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1900. Sanborn Map Company. Oakmont, Allegheny Co., Pa., Feb'y. 1900. 1 map on 6 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1905. Sanborn Map Company. Oakmont, Allegheny Co., Pennsylvania, November 1905. 1 map on 7 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1911. Sanborn Map Company. Oakmont, Allegheny County, Pennsylvania, July 1911. 1 map on 9 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
1921. Sanborn Map Company. Oakmont, Allegheny County, Pennsylvania, July 1921. 1 map on 14 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.