I have a really nice autographed 1950 New York Yankees team sheet with 17 New York Yankees signatures and two broadcaster signatures after the Yankees won the 1950 World Series over the Philadelphia Phillies which has been authenticated by PSA.  I am not sure what the value is but would appreciate any assistance.  The signatures include:  Casey Stengel, Yogi Berra, Phil Rizzuto, Allie Reynolds, Joe Page, Billy Martin, Whitey Ford, Joe Dimaggio, Jack Jensen, Johnny Mize, Tommy Heinrich, Bobby Brown, Gene Woodling, Eddie Lopat, Vic Raschi and Tommy Byrne.  The two guest announcers for this World Series that autographed the sheet were Ralph Kiner and Dizzy Dean. 

Mitchell