Hardcover. Condition: Very Good. A impressive and possibly unique reference book ascribed to Chaz Bowyer, the aviation author. The book consists of 220 pages of photos and newspaper/magazine cut-outs. 112 of the pages concern the Air Service of the American Expeditionary Force with the other pages on the Italian and Belgian Air Forces of the First World War. The book is in very good condition, nicely bound and in mostly unmarked covers. It is 15in/40cm high, 11in/28cm long and nearly 5kg in weight. Please check for postage if outside the UK. Please see photos.