Two Picasso-designed vases; a court affidavit submitted by Jimmy Carter to the state of Maine; and an ornate saddle.

ANTIQUES ROADSHOW host Mark L. Walberg gets a taste of Tucson, Arizona, history from the seat of an antique buggy, part of the impressive stable of horse-drawn conveyances housed at the Tucson Rodeo Parade Museum and proudly mobilized for the annual Tucson Rodeo Parade. At the Tucson Convention Center, it's a pageant of prized possessions, including two Picasso-designed vases bought in France; a court affidavit submitted by Jimmy Carter to the state of Maine on the eve of the 1976 election, appealing their decision to list him on the ballot as James Earl Carter; and an ornate saddle - purchased for the owner as a child and ridden just once when she competed for the title of Coolidge Cotton Days Rodeo Queen in Coolidge, Arizona - a cinch to bring $6,000 to $8,000.