'Feldpost' letter - Heinz Guderian -1940

'Feldpost' letter of 'Generaloberst' Heinz Guderian (RK 27-10-1939,EL 17-7-1941) which was sent in 1940 by Guderianto 'Major' Wriede because he was awarded somekind!?Guderian was known for his expertise on panzer warfare and the initiator for the massive use of panzers during WW II and therefor one of the successful german warlords of the 'Blitzkrieg'!.