Smarty Pants: The guys check out a guitar owned by music legend Stephen Stills, along with a fascinating detective's camera from the 1800s. (S15, ep 32)
Hot Dam: Rick takes a look at some original blueprints to the Hoover Dam, while Chum has a potentially costly accident. (S16, ep 16)
Tough Cookie: A gold and silver Remington Arms gun pops up in the shop. Also, Corey and Chumlee look to strike a deal on a Mr T doll. (S14, ep 31)
The Wright Stuff: The guys snap to attention when a client brings in a rare West Point musket. They also get offered pilot licences signed by father of flight Orville Wright. (S6, ep 26)
Message In A Bottle: The men are presented with a supposed Civil War spy's whisky flask, two 19th-century English duelling pistols, and the original contract for The Who to play Woodstock.