Watch List notes:

Australia, 'MacRobertson Miller Aviation Company's Aerial Service' first flight covers Whyalla to Cowell and return flight, first cover with registration from Whyalla fixed with Sturt 3d, kooka 3d, 2d/1 1/2d KGV, dated 23 February 1934; second cover a registered cover from Cowell to Whyalla fixed with 3d Air mail stamp, 3d Sturt, Canberra and 1d red KGV, dated 23 February 1934; both fixed with different additional,'By Air Mail' stickers, (Eustis 363a). Both fine and rare. (2)

Ex J.P.Melick Collection. Eustis notes that intermediate flights as above as low as only 30 covers each were flown.
($90-100)