Section-perspective drawing A Fragment by Gerhard Kallmann architizer.com Council Chamber Study Looking South. Gerhard M. Kallmann. Kallmann’s distinctive section-perspective drawing technique seen here allowed the simultaneous exploration of both interior spaces and building systems. Anatomical Drawings of Staircase SpacesBoston City HallDrawing as a means of thinking drawing
Grain Shapes and Other Metallurgical Applications of Topology An Essay from A Search for Structure by Cyril Stanley Smith The boundary can tell much about what is inside topologymetal