1929. Sanborn Map Company. Oakmont, Allegheny County, Pennsylvania, October 1929. 1 map on 16 sheets : color ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
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      1927. Sanborn Map Company. Osborne, Allegheny County, Pennsylvania, January 1927 : R.R. Station, Glen Osborne, including Haysville. 1 map on 2 sheets : color ; sheets 65 x 54... Sanborn Map Company.
    
  
    
      1927. Sanborn Map Company. Pitcairn, Allegheny County, Pennsylvania, August 1927. 1 map on 5 sheets : color ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1895. Sanborn Map Company. Sewickley, 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. Sewickley, Allegheny Co., Pa., Feb. 1900. 1 map on 10 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1911. Sanborn Map Company. Sewickley, Allegheny County, Pennsylvania, May 1911. 1 map on 14 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1891. Sanborn Map Company. Sharpsburg, Allegheny Co., Pa., April 1891. 1 map on 5 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1896. Sanborn Map Company. Sharpsburg, Allegheny Co., Pa., Dec. 1896. 1 map on 11 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1914. Sanborn Map Company. Springdale, Allegheny County, Pennsylvania, September, 1914. 1 map on 5 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an... Sanborn Map Company.
    
  
    
      1924. Sanborn Map Company. Springdale, Allegheny County, Pennsylvania, April 1924. 1 map on 9 sheets : color ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to one in... Sanborn Map Company.