Sketchbook, Fish
Sketchbook, Mammal
Sketchbook, Insect
Sketchbook, Turkey
Sketchbook
Sketchbook
Study of Bird I
Study of Bird II
Sketchbook No. 27
Sketchbook No. 23 (France)
Sketchbook No. 34 (Japan)
Sketchbook No. 36 (Japan: Kamakura)
Sketchbook, Winter
Sketchbook, Summer
Sketchbook
Sketchbook No. 17 (Japan: Ōiso etc.)
Sketchbook No. 39 (Holland: Muiden and Sluis)
Sketchbook
Sketchbook, Spring vol. 1
Sketchbook, Spring vol. 2
Sketchbook, Autumn vol. 1
Sketchbook, Autumn vol. 2
Sketchbook No. 14 (Sino-Japanese War)
Sketchbook No.3 (Travel in Belgium、Blankenberge)
Uploaded: 2023-01-17