US Open Tournament used flags are the most difficult to date of Major flags. They don’t at the years on them but they change slightly from year to year. I date most US Open flags by looking at Getty images and looking at tournament photographs.

This is a Tournament Used flag from the 1979 US Open where Hale Irwin went on to win. This tournament was held at Inverness Club in Toledo, Ohio.

This is a US Open tournament used flag from the 2002 US Open held at Bethpage. Tiger Woods won the 2002 US Open.