Swallows and Amazons Japanese 1958, (2
vols, hardback and paperback) 1993 and
1998
Tsubamego to amazongo (Swallow and Amazon)
Published by Iwanami Shoten, Tokyo.
Translated by Teruo Jingu and Kinzo Iwata. Illustrations by Ransome as usual, but someone has skilfully added watercolour to the first of the illustrations in each book.
The later books are still available.