Published: Feb 29, 2012 10:23 AM EST

LOS ANGELES (AP) - Fifteen Academy Awards statuettes from the 1930s and '40s, including the Best Screenplay Oscar given to Herman Mankiewicz for "Citizen Kane," have been sold at a Los Angeles auction. Auction house Nate D. Sanders says the sales totaled more than $3 million. Mankiewicz's 1941 award sold for $588,455, more than double its auction price from 1999. The 1941 Best Picture award, for "How Green Was My Valley," went for $274,520. It was last sold in 2004 for $95,600. A statuette for "Cavalcade," 1933's Best Picture, brought in $332,165. Other Oscars on the block were Ronald Colman's 1947 Best Actor award for "A Double Life" and Charles Coburn's Best Supporting Actor statuette for "The More the Merrier" in 1943.