Filtering by: Contributor Howard-Bury, Charles, 1881-1963, Associated Name Remove constraint Contributor: Howard-Bury, Charles, 1881-1963, Associated Name Format pamphlets Remove constraint Format: pamphlets Format Pamphlets Remove constraint Format: Pamphlets Subject World war, 1914-1918--Pamphlets Remove constraint Subject: World war, 1914-1918--Pamphlets Subject Gas masks Remove constraint Subject: Gas masks