Technical Drawings Olivetti Staircase - Carlo Scarpa Monometric oblique axonometry. Venezia, Italy Red and Blue Chair - Gerrit Rietveld Monometric oblique axonometry Zig Zag Chair - Gerrit Rietveld Monometric oblique axonometry Steltman Chair - Gerrit Rietveld Isometric orthogonal axonometry Charles Rennie Mackintosh Chair Monometric Oblique Axonometry