Series consists of manuscripts, typescripts, and correspondence regarding various personal, non-architectural projects undertaken by Nobbs, in particular the design of his deflected northern lighting system for the National Research Council.
Letters from several of Nobbs' friends and colleagues, among them Sir Raymond Unwin (1934-1940), Professor G. Baldwin Brown (1893-1926), Auckland C. Geddes (1909-1953), Bertram Goodhue (1906-1935), R. S. Lorimer (1904-1924) and Noulan Cauchon (1935).