Collection of eight genuine U.S. Vietnam War era The Preventative Maintenance Monthly magazines. Created by the talented artist and Army veteran William Erwin Eisner who used comics as a form of teaching aid, this set includes eight magazines all in good condition and include the issues: April 1971, July 1971, August 1971, September 1971, October 1971, November 1971, December 1971 & March 1972.