circular / a.r.p. department Civilian duty respirators fitted with microphone attachments / Home Office, Air raid precautions department Experiments in anti-gas protection of houses / Home Office , Air raid precautions department Anti-gas protection of babies and young children / Home Office , Air raid precautions department Certification mark for filtration plants giving protection against poison gases used in war / Home Office, Air raid precautions department Magazijn-Inventaris der Marine. Afd. B : Duiktoestellen; gasbeschermers (tevens rookmaskers); zuurstofpompen; zuurstofkoffers; brandbluschbenoodigdheden; nevelverwekkers : (verkorte benaming: duiktoestellen; gasbeschermers; brandbluschbenoodigdheden, enz) air raid precautions handbook Personal protection against gas / issued by the Home Office, Air raid precautions department Specimen standing orders for protection against gas and air raids in billets, camps and bivouacs for all headquarters and units Maatregelen tegen gasgevaar - Koninklijke Landmacht Voorschrift no. 724 protection of foodstuffs against poison gas / issued by the Home Office, Air Raid Precautions Department detection and identification of war gases : notes for the use of gas identification officers / Ministry of Home Security, Air raid precautions department Air Raid Precautions. Handbook no.3. Medical Treatment of Gas Casualties Advanced Gas Training, 1943
