The collection is arranged into seven series, and then chronologically from earliest to latest. Further details are represented at the series level within the scope and content notes.
Series І. General Correspondence, 1927-1953
Series ІІ. Architectural Records, 1929-1938
Series ІІІ. Monthly Meeting Minutes, 1936-1939
Series ІV. Running Memos, 1927-1953
Series V. Finance, 1927-1957
Series VІ. Publicity Material, 1926-1955
Series VІІ. Photographs, 1926-1939