In the 1940s his stylized figure, still-life and landscape compositions with strong colors gradually became completely abstract, with tight-knit interlocking shapes in rich, bold colors.
This required block signalling for all passenger railways, together with interlocking, both of which form the basis of modern signalling practice today.
The original stage was gutted and replaced with a complex stage surface that includes three interlocking turntables and 17 independent elevators for this production.
