b'601913 Engraved Issue519C 1d Carmine-Red, attractively used on cover from SYDNEY (7 Apr. 1914) to Melbourne.Surprisingly scarce on cover!. $100150 19291965 issues520 520** CTO 1929 (SG.115) 3d green Airmail, marginal blk.(4), the lower 2 units CTO STAMP KIOSK - ELIZ. ST. MELB. - 20 MY 29 in violet. An extremely scarce postmark, not previously seen by us. $100150521** 1931 Kingsford Smith, 6d sepia Airmail, 1/- Large Lyrebird, 6d Kookaburra, 1934 Victoria Centenary,1935 ANZAC, 1935 Jubilee and 1936 South Australia, complete sets, fresh MUH, (17). $250300522522C July 1932 usage of 2d, 3d & 5/- Sydney Harbour Bridge set on registered airmail cover fromMelbourne to Switzerland endorsed Karachi-London at top left; with departure, transit and arrival backstamps.Less frequently seen postally used than on a first day cover! $1,0001,250'