----- 第50航空中队的历史
It has been written solely for the men of the squadron, and only 3 50 copies printed. Each volume is numbered and fully copyrighted and therefore is not for outside publica tion. This has been done in order to make the book very valuable to you and something which you will keep for your lifetime. If it had been meant for a commercial publication, an entirely different plan in writing it would have been used, so I ask you to respect this wish and keep it a book solely for us.
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