[Subway] Gyral Sketch Book 1, page 26
1937/1938
[Subway] Gyral Sketch Book 1, page 29
[Subway] Gyral Sketch Book 1, page 31
[Subway] Gyral Sketch Book 1, page 35
[Subway] Gyral Sketch Book 1, page 37
[Subway] Gyral Sketch Book 1, page 39