104275 'LETTERS IN THE AIR' BY JEFFREY H. BOOTH.

'LETTERS IN THE AIR' BY JEFFREY H. BOOTH. A fine copy of this excellent recent (2016) publication on this fascinating and most collectable area, hardback, 148 pages with very fine information on the 1911 First UK Aerial Post. Essential for collectors interested in the world's first official air mail service. (Ref 104275).