The very first of the now-popular "undated" Masters flags was sold at the 1998 Masters Tournament, which was won by Mark O'Meara. This was before flag collecting became mainstream, so 1998 version undated flags remain very difficult to find. Offered here is a 1998 version undated Masters flag that contains a large autograph by that year's Champion Mark O'Meara - who added the inscription "1998."