Insurance maps of Ambridge, Beaver County, Pennsylvania, Jan. 1917. 1 map on 14 maps : col. ; on sheets 64 x 54 cm.; Title from sheet . Oriented with north to the upper right on most sheets. Jany. 1917."" Includes location map, sheet index map, streets and special index, key, and text."". Scale approximately 1:600. 50 ft. to an in. unless otherwise noted on individual sheets.