HEYDEMARCK HAUPT , "War Flying in Macedonia / Translated by Claud W. Sykes", London: John Hamilton LTD, [1935]. 8vo, 196pp. + folding map at the end. 1st edition. Profusely illustrated by 36 photographic images & sketches throughout. Rare fascinating insight into air warfare during the First World War from the Axes part. Heydemarck’s main task on the Struma front, was aerial reconnaissance, photographing British positions for the Bulgarian artillery, but also bombing raids on British airfields. The scout pilot was the German ace, Lt. Von Eschwege, credited with 20 confirmed and 6 unconfirmed victories. His exploits dominate the book along with 36 plates which include excellent aerial photographs of Salonika, Macedonia and the Struma valley.