No. 39 of the year 1934 Amendment List No. 41 to the Airworthiness Handbook for Civil Aircraft (Air Publication 1208) has been issued, and copies can be obtained from His Majesty's Stationery Office, Adastral House, Kingsway, W.C.2, or through any bookseller, price 1d. net or 1½. post free.
(1935), "Air Ministry Official Notices: Instructions to Aeroplane Owners and Ground Engineers on Essential Modifications", Aircraft Engineering and Aerospace Technology, Vol. 7 No. 2, pp. 48-48. https://doi.org/10.1108/eb029907Download as .RIS
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