AMS 2. Alternate title: Davao & Santa Ana. In upper left margin: Philippine city plans 1:6,000. Polyconic projection. Compiled from Town of Davao, OSS, 1943, USC&GS Topographic Field Survey Sheets, 1:5,000, P1842 A & B, 1930; oblique photography, 1935-36; vertical mosaic, prior to 1940.