A magazine, 48 pages, measuring 209x296mm, extremely fine condition with minor scuffing.It is vol. 7, no. 6, pages 191–224 of “Deutsche Luftwacht” (German Air Guard), edition Luftwissen (aerial science), published in June 1940. The article talks about how the Luftwaffe is one of the most decisive elements of the Blitzkrieg victories, if not the single most important factor, and about its feats in the spring of 1940. Other articles are about new technological advances in aeronautics.