'Certification Mark For Respirators of General Service Type Giving protection against Poison Gases used in War.(Supplement to the Memorandum already issued in respect of Respirators of the Civilian and Civilian Duty Type), Air Raid Precautions Dept. [12/38]' from His Majesty's Stationary Office (HMSO) Catalogue

Name	Certification Mark For Respirators of General Service Type Giving protection against Poison Gases used in War.(Supplement to the Memorandum already issued in respect of Respirators of the Civilian and Civilian Duty Type), Air Raid Precautions Dept. [12/38]
Category	Air Raid Protections, Medical and Gas
Department	Home Office
Issued For	none
SO.Code	34-9999
Published	Dec/1938
Pages	6
Form	P1
Size	21 x 33.5
ARJ	n/a