7 maps : photocopies ; sheets 67 x 92 cm. Scale not given. Enumeration districts as of 1920. Title devised by cataloger. Base maps from Chief Engineer's Office, Board of Estimate and Apportionment, July 1, 1924. Scale on original maps: 1 in. = 1500 ft. RG 29. Reproduced from originals in the Cartographic and Architectural Branch, National Archives and Records Administration.