Related items available in Philatelic Books 1993 (26 Oct) Vichit Eurtivong collection of Siam Royal Mail, stamps and covers. Christies 62pp. Fine. £8 See more Related items available in Maps, Prints, Photographs Ephemera J. & C. WALKER China and the Birman Empire with parts of Cochin-China and Siam Society for the Diffusion of Useful Knowledge 1834 Engraved map with coloured outline with full margins in fine condition. 15 x 12.5" £85 See more Related items available in Miscellaneous books 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. £400 See more