A drawing of German military physician Kurt Roiber, executed by coal on the reverse side of the Soviet topographic map on the night of December 24 to December 25, 1942, surrounded by Stalingrad, during the final stage of the Battle of Stalingrad. Inscriptions in German: Licht. Leben. Liebe. Weihnachten im Kessel. Festung Stalingrad (“Light, Life, Love, Christmas in the Cauldron, Fortress of Stalingrad”).