The Green County Historical Museum's military section has a sniff kit donated in 1964 by the late Nat Preston (1897-1978) of Monroe. The sniff kit shown here was designed as a training tool to provide an easy and safe method of identifying the five principal gases used in chemical warfare. The sniff kits were developed in cooperation with the Office of Civilian Defense and the Chemical Warfare Service of the U.S. Army for use by state, county and local Defense Councils, as well as police and fire departments.