'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
Distribution	none
Distribution Information	none
Listed In HMSO Index	Dec/1938
Pages	6
Printer	none
Size	21 x 33.5
Price	3d