When we first saw this flag in the collection of Justin Leonard's former caddie Bob Riefke several years ago, we had never seen the flag before - a replica 17th hole flag from the 1999 Ryder Cup. Years later, we still haven't seen another, so we presume that Justin Leonard or someone else had one (or a very small number) custom produced to commemorate Leonard's putt on the 17th hole to secure victory for the United States at the 1999 Ryder Cup. 

This possibly-unique 17th hole flag from the 1999 Ryder Cup at The Country Club at Brookline is autographed by Captain Ben Crenshaw and the man who finished off the dramatic American comeback - Justin Leonard. Leonard added a great inscription his caddie Bob Riefke - "To Bob, Nice Read!"