1911. Sanborn Map Company. Insurance maps of Coraopolis, Allegheny County, Pennsylvania, June 1911. 1 map on 12 sheets : col. ; sheets 65 x 54 cm. + 1 title sheet. Scale app... Sanborn Map Company.
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1911. Sanborn Map Company. Insurance maps of Duquesne, Allegheny County, Pennsylvania, Oct. 1911. 1 map on 18 sheets : col. ; sheets 65 x 54 cm. + title sheet. Scale approxi... 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.
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.
1911. Sanborn Map Company. Insurance maps of Turtle Creek Valley, including Pitcairn, Wall, Wilmerding, Turtle Creek, and East Pittsburg, Allegheny County, Pennsylvania, May ... Sanborn Map Company.
1911. Sanborn Map Company. Verona, Allegheny County, Pennsylvania, July 1911. 1 map on 7 sheets : col. ; sheets 65 x 54 cm. Scale approximately 1:600. 50 ft. to an in. Sanborn Map Company.