The collection comprises Australian aviation philatelic material received by Ronald Armstrong from his friend Ernest Crome and includes first day covers bearing the signatures of Australian aviation pioneers including Gubby Allan, Hal Litchfield, Nancy Bird Walton, Lores Bonney, Sir Norman Brearly, Lawrence Wackett and others; a letter carried on the very first Ansett flight from Hamilton to Melbourne signed by the pilot Vern Cerche in addition to other envelopes carried on historical fights and a copy of Ernest Crome's book 'From Ships to Helicopters', signed by the author, Australian aviation pioneers and Australian cyclist and politician Sir Hubert Opperman.