1934, First Australian Rocket Flight S.S.Canonbar to Brisbane: violet vignette tied by dated cachet (4.DEC.1934) on reverse of illustrated cover with single 2d red 'Macarthur' tied by cds Pinkenba and addressed to Brisbane; in addition a second similar envelope with single 6d sepia ovp 'OS' (SG 139a) sent by airmail from Pinkenba to Sydney, both covers signed by Alan H. Young (president of the Queensland Air Mail Society). VF condition.