Filtering by: Contributor Howard-Bury, Charles, 1881-1963, Associated Name Remove constraint Contributor: Howard-Bury, Charles, 1881-1963, Associated Name Creator Great Britain. Army. General Staff. General Headquarters, Issuing body Remove constraint Creator: Great Britain. Army. General Staff. General Headquarters, Issuing body Format Pamphlets Remove constraint Format: Pamphlets Keyword Unassigned Remove constraint Keyword: Unassigned Language English Remove constraint Language: English Location Manuscripts & Archives Research Library, Trinity College Dublin Remove constraint Location: Manuscripts & Archives Research Library, Trinity College Dublin Subject Gas masks Remove constraint Subject: Gas masks Title Defensive measures against attacks Remove constraint Title: Defensive measures against attacks