Season 25

Chum evaluates a top-notch WWII scooter, Rick decides whether to make a jumbo offer on a window from a 747-400, and signature specialist Steve Grad is in the shop to lend his expertise to an autographed guitar from a legendary rock band.

Rick checks out some basketball cards that reheat the Johnson and Bird rivalry, he and Chum take a field trip to look at some high-end watches, and rare books expert Rebecca Romney sinks her teeth into a first printing of “Dracula.”

Rick tries not to crack up over a joke shop sign, and Chum comes face to face with a Slipknot mask.