Document and a signed photo!
Aged copy of a secret clause of Ribbentrop-Molotov Pact from August 1939 which laid political groundwork for invasion of Poland, annexation of Baltic Countries and Moldova and the Soviet-Finish Winter War which all followed promptly. It's unbelievable how much weight can one page of text carry!
Document is signed by foreign ministers of German Reich and Soviet Union - Joachim von Ribbentrop and Vyacheslav Molotov respectively. English translation of the pact comes with it. 
Can be ordered with a reproduction of signed photo of von Ribbentrop. 
Document format is German Fanfold (8.5x12"), manila color with some aging, shipped folded in half.