80^th Anniv End of Russian Offensive Signed Senior Freidhelm von der  Marwitz  Grandson of General Georg van der Marwitz 

1 9 96 BFPS 2530 80^th Anniversary The Great War. The Collapse of the Brusilov Offensive Special Postmark. The End of the Great Russian Offensive June to September 1916. Blue Flown Cachet Flown in Hercules of No 30 Squadron from RAF Lyneham on flight Ascot 4536, a Joint Arms Control Implementation Group mission to London Airport, Amsterdam, Hanover, Berlin, Warsaw and over the area of the Bukovina and the towns of Dubno, Lutsk and Czernowitz to Minsk and Moscow. Then returned direct to Lyneham.

Personally Signed by  Senior Freidhelm von der  Marwitz  Grandson of General Georg van der Marwitz commanded a special Army Group during Summer 1916.Certified Copy No 276 of 525. Has a Coffee stain  on the back