Host Mark L. Walberg and appraiser Suzanne Perrault visit a unique memorial to renowned potter Artus Van Briggle: a building on the Colorado College campus decorated inside and out with Van Briggle tiles. Highlights from the Roadshow floor include: two circa 1958 prototype chairs designed by a guest’s father when he worked for noted modernist George Nelson; a turn-of-the-century salesman’s sample canoe; and a 1941 Martin guitar, played live on the radio by the guest’s great-uncle, “Cowboy Slim,” and valued at $65,000 to $75,000.