Thief Targets Hitler's Infamous Wolf's Lair A plaque commemorating an assassination attempt on Hitler is missing By Michael Harthorne, Newser Staff Posted Sep 26, 2015 10:30 AM CDT 14 comments Comments Tourists visit the ruins of Adolf Hitler's headquarters the "Wolf's Lair" in 2004 in Poland. Last weekend, someone stole a plaque commemorating an assassination attempt on the Nazi leader. (AP Photo/Czarek Sokolowski, File) (Newser) – Someone has stolen a plaque commemorating the man who tried to blow up Adolf Hitler from its spot of honor at Hitler's infamous Wolf's Lair in Poland, AFP reports. According to the AP, a guide at what is now a popular tourist attraction noticed the plaque was missing last Sunday, and police announce its theft yesterday. A number of German tourists were in the area when the 24-inch-by-24-inch plaque was last seen, and Polish police are hoping German authorities will help them find out if those tourists have any information about the theft, AFP reports. The plaque was unveiled in 2004 to commemorate the 60th anniversary of Col. Claus von Stauffenberg's failed attempt to assassinate Hitler with a briefcase bomb. The attempt killed three officers and a stenographer but failed to take out Hitler, and von Stauffenberg and three others were executed. Wolf's Lair was the largest of Hitler's 10 command bases during WWII. Seventy years later, approximately 200,000 tourists visit the overgrown ruins of its 200 bunkers and barracks every year.