Plot: The Pawn Stars are confident when it comes to making the right deal, but will Rick get a big head by calling in a surprise expert to appraise a Ronald McDonald balloon inflator? Then, Chum tries to ink some paperwork on an antique RCA inkwell, while Corey takes a stab at purchasing a vintage spear. And later, Rick takes a look at some Edward Curtis prints that he pictures bringing in big bucks for the Gold & Silver Pawn Shop