Watch List notes:

Australia, 'MacRobertson Miller Aviation Company's Aerial Service' first flight covers Adelaide to Kimba and return flight, first cover with registration from Adelaide to Kimba fixed with 1d kangaroo, Air Mail 3d (2), 1d red engraved and dated 22 February 1934; second cover a registered cover from Kimba to Adelaide fixed with 1d red engraved (2) 3d kooka, 3d Air Mail stamp, dated 23 February 1934; both fixed with the same 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)