Antiques Roadshow US saw a guest bring in two heirlooms that had once belonged to her great-great grandmother.

"I knew within five minutes that I had something valuable," John Carcerano, the Chicago area resident who found the plate, told Newsweek.

Antiques expert Charlie Ross was left stunned by the unexpectedly high valuation of an 18th century item he discovered in a catalogue. The Bargain Hunt star found a “magnificent” wooden desk ...