LOS ANGELES (AP) — Adolf Hitler's anti-Semitic 1919 Gemlich letter, described as the most significant document ever acquired by the Simon Wiesenthal Center, is now on display at the Los Angeles center's Museum of Tolerance.Hitler's letter was typewritten decades before the Holocaust when he was a German soldier. It is believed to be Hitler's first written comments calling for the annihilation of Jews.The Simon Wiesenthal Center bought the letter for $150,000 from Profiles in History, a dealer in Calabasas.Wiesenthal Center Rabbi Marvin Heir unveiled the letter in New York in June, saying it "set the gold standard about man's inhumanity to man."In one section, Hitler writes that Jews should be denied rights, with a final aim being the "uncompromising removal of the Jews altogether."