This pin flag is from the 2000 PGA Championship at Valhalla, which featured the epic duel between Tiger Woods and Bob May. Tiger was, of course, triumphant, and won his 5th Major Championship in what would be the 3rd leg of his eventual "Tiger Slam."
This is an original circa 2000 autograph from Tiger. The autograph has some bleeding over the years, and there is some yellowing on this 22+ year old flag.