An elegant turn-of-the-19th-century rock crystal watch with an 18th-century movement; an angelfish pin bestowed by Mark Twain on a member of his “Aquarium” group; and a collection of four rare American Indian artifacts.

Host Mark L. Walberg welcomes viewers to the 12th season of ANTIQUES ROADSHOW from Baltimore, Maryland. Walberg and appraiser Wes Cowan wander the whimsical and elegant displays of the Ladew Topiary Gardens, on the lookout for unusual cast iron garden decor. At the Baltimore Convention Center, appraisers cultivate a striking array of treasures, including an elegant turn-of the-19th-century rock crystal watch with an 18th-century movement; an angelfish pin bestowed by Mark Twain on a member of his "Aquarium" group of young female protégées; and a collection of four rare American Indian artifacts - a buffalo rawhide bag, an intricately beaded bag, an elk antler quirt with a buffalo hide lash and a delicately crafted elk horn scraper - valued at $130,000 to $200,000.