[The Kavelaars Collection, an archive re Schneider Trophy competition, 1913-1931. Comprises photograph albums, maps, 3-view plans of all participating 'planes, files of contemporary and later newspaper and magazine articles (some in other languages), etc. Also contains articles and photos re De Havilland DH-88 'Comet' and Fokker F-7B 'Southern Cross'. Listing available]