Lot of 4 Yellowstone Park Historic Yellow Bus Items. 3 Bookmarks & 1 Lapel Pin: 1) Two Metal 2007 Return of the Yellow Bus Ticket Bookmarks. Two different "Ticket Numbers". 009936 & 009938. In very good, used condition; 2) One Paper Bookmark featuring the Yellow Bus. Used with wear; 3) One Staff 2007 Return of the Yellow Bus Metal Lapel Pin/Pinback. In excellent condition (see photos). Ride The Yellow Bus through the Wonders of Yellowstone!