1897. Sanborn Map Company. Bethlehem, Pa. [1897]. 1 map on 28 sheets : col. ; sheets each 65 x 54 cm. + 1 title sheet and 1 index map sheet.  Scale approximately 1:600. 50 ft... Sanborn Map Company.
    
  
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      1904. Sanborn Map Company. Bethlehem, Pa. [1904]. 1 map on 35 sheets : col. ; sheets each 65 x 54 cm. + 1 title sheet with index and 1 map index sheet.  Scale approximately 1... Sanborn Map Company.
    
  
    
      1917. Sanborn Map Company. Bethlehem, Pa., 1917, additional maps. 5 maps : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1919. Sanborn Map Company. Bethlehem, Pa., 1919, additional maps. 5 maps : col. ; sheets 65 x 54 cm. + key map.  Scale approximately 1:600. 50 ft. to an in. unless otherwise ... Sanborn Map Company.
    
  
    
      1922. Sanborn Map Company. Bethlehem, Pa., 1922, additional map. 1 map : col. ; 65 x 54 cm.  Scale approximately 1:1,200. 100 ft. to an in. Sanborn Map Company.
    
  
    
      1910. Sanborn Map Company. Big Run, Pa. [1910]. 1 map on 3 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1912. Sanborn Map Company. Birdsboro, Pa. [1912]. 1 map on 7 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1927. Sanborn Map Company. Birdsboro, Berks County, Pennsylvania, December 1927. 1 map on 12 sheets : color ; sheets 65 x 54 cm.  Scale not noted. Sanborn Map Company.
    
  
    
      1909. Sanborn Map Company. Black Lick, Pa. [1909]. 1 map on 2 sheets : col. ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.
    
  
    
      1927. Sanborn Map Company. Black Lick, Indiana County, Pennsylvania, April 1927. 1 map on 3 sheets : color ; sheets 65 x 54 cm.  Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.