cover AIRMAIL: 1934-84 U5 and aerogrammes, the collection of airmails from or to the Orkneys including Highland Airways 1934 29 May (3), 30 July, 1 Dec. (3) and later, Allied Airways 1937, Scottish Airways 1938 17 Dec. Emergency Flight and 1939 31 July (3), Loganair 1970 24 Nov. from Kirkwall and from Papa Westray, and later commemorative covers; some pilot signed (29)