The collection comprises a boolket produced by Greater Sydney Development Association showing Castlecrag and its buildings from c1922 to c1926; a booklet containing descriptions and illustrations of buildings designed and constructed by Walter Burley Griffin using knitlock; Program for the 1936 annual Anthroposophical Festival; Carbon copy of typed reference by Walter B. Grriffin written for Louise Lighfoot; Copy of a thesis on the work of Walter Burley Griffin by Robert Meyer; Eight page original contract dated 1 November 1934. Signed by Eric M. Nichols and Walter B. Griffin on behalf of the Greater Sydney Development Association, and by E. A. Deans; Five page typewritten essay written by C. C. D. Brammall in 1947 and annotated by Edgar Deans describing the Griffins aims to build a Sydney suburb of Castlecrag; Newsletter published by the Cumberland County Council Cumberland;The Federal Capital: Report Explanatory of the Preliminary General Plan from 1913; Illustrated plan of the subdivision of Castlecrag Estate, produced by the Greater Sydney Development Association.