This map accompanied a secret undated German report on the mass murder of Jews by Einsatzgruppen A (mobile killing unit A). During the International Military Tribunal at Nuremberg, the map was introduced as evidence by both the American and British prosecution teams. The document, entitled "Jewish Executions Carried Out by Einsatzgruppen A" and stamped "Secret Reich Matter," shows the number of Jews executed (symbolized by coffins) in the Baltic states and Belorussia by late 1941. The legend near the bottom states that "the estimated number of Jews still on hand [was] 128,000."