Entitled: "Second floor latrine, bank of urinals. Hamilton Field, Air Corps Dormitories, Marin County, California." A urinal is a sanitary plumbing fixture for urination only, predominantly used by males. It can take the form of a container or simply a wall, with drainage and automatic or manual flushing, or without flush water as is the case for waterless urinals. Photographed by David De Vries for Historic American Buildings Survey/Historic American Engineering Record.