OSVALDO BORSANI FOR TECNO, CIRCA 1953

Borsani's slightly later and better known P40 probably evolved directly from this super-sized chaise longue. Even with cushions, the chair's structural components are clearly visible, intentionally revealing its remarkable engineering and demonstrating Borsani's commitment to technical advancements.
cf. Yvonne Brunhammer and Guillemette Delaporte, Les Styles des Années 30 à 50, 1987, p. 131