Description:

1929 (June 10) Sydney-Darwin-Adelaide-Sydney #139/140 two covers flown by Les Holden in the DH86 'Canberra' on the Commonwealth Civil Aviation Department survey charter flight carrying CL Abbot, Minister of Home Affairs, the former endorsed 'BY FIRST AERIAL MAIL ROUND AUSTRALIA/FROM SYDNEY TO SYDNEY' backstamped 'WAVE HILL/15/JE29/NT' as well as Cunnamulla and Charleville, Qld and Wyndham, WA in fine condition, the latter endorsed 'Carried by the Air Liner "Canberra" Darwin to Adelaide' sent registered on return leg (20 flown) with couple of minor blemishes, Cat $1,250.