Windowsill in a patient room of the 1930's-era Polk Building at the former West Tennessee Hospital for the Insane.
(Print: http://smu.gs/17QQQYo)
Photo: "The Lost World"
(From the archives, 2009)
This former base was used by the Army Reserve from 1911 until it closed in 1995.
During the first few years of operation, the main goal of the base was to use hydraulic suction dredges to widen and deepen the California River Delta sections to make for easier transport.