1898-1904 selection with OPSO envelope [slightly reduced] from 'Chief Secretary's Office' Adelaide to USA, bearing 2½d Violet-blue optd 'OS', 1899 to Canada via San Francisco bearing ½d strip of five tied by Semaphore squared-circle datestamps and 1904 to Hobart bearing 2d tied by two Petersburg squared circle datestamps, arrival backstamps (3 covers)
1899 (15 Nov) registered printed envelope to U.S.A. bearing 1d, 2d pair and ½d tied by squared-circle 'LARGS BAY' datestamps, handstruck 'R' within oval and manuscript number, transit and arrival datestamps of Adelaide, London and New York. Attractive
1900 (14 Aug) Governor's envelope with insignia in red on flap, used Adelaide to Sydney bearing ½d and 1d optd 'OS' pairs, violet cachet 'AIDE DE CAMP'S/OFFICE/ GOVERNMENT HOUSE' at left, Sydney backstamp. A rare franking
1901 (10 Aug) use of 1d Postal Card at Adelaide with printed message on reverse side, on front 'UNCLAIMED' AND 'NOT KNOWN/BY LETTER CARRIER' in black, DLO backstamp in red
1905 (9 Mar) registered cover to U.S.A. bearing thin 'POSTAGE' 4d Orange-red pair (SG 281) tied by squared-circle 'JAMESTOWN' datestamp, another alongside, U.S. receiving markings and backstamps of Adelaide, London, New York and Wilmington, minor blemishes. An attractive and scarce example of ½-1oz rate (5d) + 3d registration
1906 (Apr) registered cover to U.S.A. bearing thin 'POSTAGE' 8d Blue tied by squared-circle 'CLARE' datestamp, another alongside, arc 'REGISTERED/Nº.' and manuscript number, backstamps of London, New York and Massachusetts, slightly trimmed corner
Cancellations: Two stockbooks containing perf 'SA' or 'OS' lower values, plus three plastic containers with low values, unchecked by us, did sight Darwin cancels (few 1000)