JD Leland and Co. Pencil Points 12 January 1931, 56 Timothy L Pflueger. Architect and Engineer 138 39 July 1939, 38 Thomas S Tait. Architectural Record 68 30 October 1930, 314 Harbin F Hunter. Architect and Engineer 138 39 October 1939, 30 Charles Z Klauder. Pencil Points 20 January 1939, 31 Richard Neutra. Pencil Points 18 July 1937, 423 Dorian Dorian Paquet and Vitra. Pencil Points 18 April 1937, 217 Mies van der Rohe. Architectural Record 68 30 October 1930, 328 Richard Neutra. Architectural Record 68 30 August 1930, 100 Briggs. Pencil Points 12 January 1931, 54 P C Jeffries. Pencil Points 20 June 1939, 404