THAILAND - Aviation in Siam Thailand (1926 (circa)) 13 large pp + 20 photo plates + 3 folding maps. 1st ed., card cover and first 10 pages with repaired marginal tears otherwise clean apart from one plate which is rather soiled in margin only. Bound in contemporary blue cloth.History of aviation in Thailand with much on carrying the mail. Fine folding maps of Thailand printed by the Royal Survey Department. Text in English and French. Rare.