Auction 333-341 Australian States & Commonwealth of Australia and New Zealand – The ‚KOOYONG‘ Collection - Day 2

1893: Great Britain 40 pa. on 2½ d. grey-blue postal stationery envelope, sent registered to Germany, up-rated for 3 piastre rate with pair of provisional "40 PARAS" on GB ½ d. vermilion, tied by "BRITISH POST OFFICE / CONSTANTINOPLE" code A datestamps on First Day of Issue (Feb 25, 1893) in black. The cover with minoor bends, the stamps affected by slight damp and toning; reverse with Aichach, Bavaria arrival cds (Feb 28).  A rare double rate registered FDC.