1901. Sanborn Map Company. Scale 1:600. 50 ft. to 1 in. Fire insurance map hand colored to show building construction, locations of windows and doors, elevators, and availabl... Sanborn-Perris Map Co.
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1894. Sanborn Map Company. Scale 1:600. 50 ft. to 1 in. Fire insurance map hand colored to show building construction, locations of windows and doors, elevators, and availabl... Sanborn-Perris Map Co.
1888. Sanborn Map Company. Altoona, Pa. [1888]. 1 map on 23 sheets : col. ; on sheets 64 x 54 cm. Oriented with north to the upper right, with some sheets on the horizontal; ... Sanborn Map Company.
1894. Sanborn Map Company. Altoona, Pa. [1894]. 1 map on 41 sheets : col. ; on sheets 65 x 55 cm. + 1 title sheet and 1 key sheet. Oriented with north to the upper right with... Sanborn Map Company.
1909. Sanborn Map Company. Altoona, Pa. [1909]. 1 map on 100 sheets : col. ; on sheets 64 x 54 cm. Oriented with north to the upper right; ""Corrected to 1909""; Sheet 1 on v... Sanborn Map Company.
1917. Sanborn Map Company. Altoona, Pa. [1917]. 1 map : col. ; on sheet 65 x 55 cm. Jan. 1917""; Oriented with north to the upper right; Set follows standard Sanborn color-co... Sanborn Map Company.
1920. Sanborn Map Company. Altoona, Pa. [1920]. maps : col. ; on sheets 65 x 55 cm. Title taken from upper left corner of sheet 99; Oriented with north to the upper right; S... Sanborn Map Company.
1922. Sanborn Map Company. Altoona, Pa. [1922]. maps : col. ; on sheets 65 x 55 cm. July 1922""; Oriented with north to the upper right; Set follow standard Sanborn color-cod... 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.
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.