1902. Sanborn Map Company. Ambler, Montgomery County, Pennsylvania, May 1902. 1 map on 3 sheets : col. : on sheets 64 x 54 cm.; Publisher's title from sheet 1. Oriented wi... Sanborn Map Company.
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1909. Sanborn Map Company. Ambler, Montgomery County, Pennsylvania, Jan. 1909. 1 map on 13 sheets : col. ; on sheets 64 x 54 cm.; Publisher's title from sheet 1. Oriented ... Sanborn Map Company.
1921. Sanborn Map Company. Ambler : including Fort Washington, Montgomery County, Pennsylvania, Dec. 1921. 1 map on 21 sheets : col. ; on sheets 65 x 55 cm. Publisher's title... Sanborn Map Company.
1905. Sanborn Map Company. Ambridge and Economy, Beaver County, Pennsylvania, Oct. 1905. 1 map on 10 sheets : col. ; sheets 65 x 54 cm. Statement of responsibility: Sanborn M... Sanborn Map Company.
1911. Sanborn Map Company. Insurance maps of Ambridge, Beaver County, Pennsylvania, Feb. 1911. 1 map on 15 sheets : col. ; 64 x 54 cm. Cadastral map. Title from sheet [1]. ... Sanborn Map Company.
1917. Sanborn Map Company. Insurance maps of Ambridge, Beaver County, Pennsylvania, Jan. 1917. 1 map on 14 maps : col. ; on sheets 64 x 54 cm.; Title from sheet [1]. Oriente... Sanborn Map Company.
1923. Sanborn Map Company. Ambridge, Beaver County, Pennsylvania. 1 map on 15 sheets : color ; on sheets 65 x 55 cm. Scale approximately 1:600. 50 ft. to an in. unless other... 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.
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.