The letter was found by auctioneers in Edinburgh
A lost letter from Lawrence of Arabia, which mentions his move to Lincolnshire, has sold for £33,000 at auction in Scotland.
The letter to Lord Rennell was found in a signed copy of Lawrence's book Seven Pillars of Wisdom which was taken into an auctioneers in Edinburgh.
The letter describes Thomas Lawrence's move to RAF Cadet College in Cranwell.
Before the sale, the book and autographed letter were valued at £28,000 by auctioneers.
In the letter, written in 1925, Welsh-born Lawrence says: "Yes I'm here now... Lincolnshire is like a picture of dead earth in green & grey.
"The camp [RAF Cranwell] is good. Also the fellows, also the life. Mark me down for a further spell of quite happy existence."
Lawrence, who was born in Gwynedd and lived in Bovington, Dorset, left the RAF in 1935 and months later died in a motorcycle crash near his home.
Simon Vickers, from book specialists Lyon & Turnbull, who held the auction, said: "It is a wonderful everyday letter from Lawrence."
The Seven Pillars of Wisdom was published privately in 1926 and is said by experts to be a rare copy.
The auctioneers were unable to comment on the new owner.