The Dig the City Festival provides the backdrop for Tim Wonnacott's search for Manchester's antiques. The locals come up trumps, with objects including Pilkington pottery, a rare and valuable star atlas and a fascinating book of textile samples from 1846, which illuminate Manchester's industrial past as the hub of the cotton trade. Tim explores the work of Ford Madox Brown and visits Manchester Metropolitan University's art school to see treasured objects in their special collections.