It would depend on a lot of things:
What is the letter for?
How is the condition (is it faded, is it yellowed, is it bent or torn...
King George's letters, dated 1918, to American soldiers are selling for about $30 through online auctions. There are several higher asking prices, but they are not selling. Condition greatly affects the price.
King George V was King from 1910 to 1936.
The King of the UK in 1918 was HM King George V, who is the current Queen's grandfather.
The cast of A King of Cooks - 1918 includes: George Bickel
Britain's Bulwarks No- 9 King George and Queen Mary Witness the Black Arts of War - 1918 was released on: USA: 7 July 1918
$30
A king and a ship is probably a British halfpenny, dated 1937 through 1952, featuring King George VI.
It is potentially a lithograph of a mass communication letter sent to many soldiers and the value is probably more or less sentimental and historical
King George the first is on the obverse of the Halfpenny & Twopence coins dated 1723.
yes dated 1760 to 1809, other side has only sun with crown below and the words LONG LIVE THE KING
George Pollock Antrobus has written: 'King's messenger, 1918-1940' -- subject(s): Foreign relations
Value of British banknote during reign of King George III - dated October 1773 ?