Hard Rock Cafe All Is One Guitar Staff Pin. I understand this was the first pin given at the very first General Manager conference. Great rare addition to any top hard rock Collection. The item "Hard Rock Cafe All Is One Guitar Staff Pin" is in sale since Saturday, March 2, 2019. This item is in the category "Entertainment Memorabilia\Music Memorabilia\Rock & Pop\Artists H\Hard Rock Café\Pins".The seller is "hrcpinseller1" and is located in Fresno, California. This item can be shipped worldwide.