Swallowdale First paperback edition 1968
Puffin books
This was the first Puffin book to use one of Ransome's own illustrations as the front cover.
The price was 5 shillings (modern currency 25 pence).
The title pages include the "Author's Note" claiming that the Swallows and Amazons story came solely from Ransome's own childhood. Full details of the first edition here.