Large collection of Augusta National Golf Club scorecards that are autographed by 31 different Masters Tournament Champions, including Ben Hogan, Byron Nelson, and many more. 

Here is a complete list;

Ben Hogan (deceased)
Byron Nelson (deceased)
Jack Nicklaus
Billy Casper (deceased)
George Archer (deceased)
Gay Brewer (deceased)
Phil Mickelson
Patrick Reed
Bubba Watson
Larry Mize
Adam Scott
Bob Goalby
Charl Schwartzel
Ray Floyd
Zach Johnson
Charles Coody
Jack Burke, Jr. 
Ian Woosnam
Sergio Garcia
Fuzzy Zoeller
Tom Watson (personalized)
Ben Crenshaw
Jose Maria Olazabal
Sandy Lyle
Mike Weir
Craig Stadler
Tommy Aaron
Bernhard Langer
Nick Faldo
Vijay Singh
Mark O'Meara