Offered here is a painstakingly-assembled flag that is autographed by a whopping 34 US Open Champions. This official 2000 US Open flag is autographed by the following 34 US Open Champions:

Jack Nicklaus 
Arnold Palmer (deceased)
Gene Littler
Gary Player
Tom Watson
Tom Kite
Rory McIlroy
Jordan Spieth
Brooks Koepka
Johnny Miller
Dustin Johnson
Lee Trevino
Curtis Strange
Geoff Ogilvy
Angel Cabrera
Retief Goosen
Fuzzy Zoeller
Graeme McDowell
Justin Rose
Tony Jacklin
Dustin Johnson
Ernie Els
Steve Jones
David Graham
Scott Simpson
Jim Furyk
Hale Irwin
Jerry Pate
Andy North
Corey Pavin
Lee Janzen
Larry Nelson
Lucas Glover
Martin Kaymer

Letter of Authenticity from James Spence Authentication (JSA)