'Home Security Circular 320/1939. Civilian Duty Respirators fitted with Microphone Attachments. Dec 6, 1939.' from His Majesty's Stationary Office (HMSO) Catalogue

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Book - Home Security Circular 320/1939. Civilian Duty Respirators fitted with Microphone Attachments. Dec 6, 1939.

Name	Home Security Circular 320/1939. Civilian Duty Respirators fitted with Microphone Attachments. Dec 6, 1939.
Category	Air Raid Protections, Medical and Gas
Department	Ministry Of Home Security
Issued For	none
SO.Code	34-9999
Security Variations	unknown
Print run	unknown
Distribution Information	unknown
Date	Dec/1939
Pages	unknown
Published by	His Majesty's Stationary Office
Printer	Unknown printer
Size	unknown
Price	none

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