Within thirty years of the Great Chicago Fire, the revitalized city was boasting some of America's grandest department stores. The retail corridor on State Street was a crowded canyon of innovation and inventory where you could buy anything from a paper clip to an airplane. Revisit a time when a trip downtown meant dressing up for lunch at Marshall Field's Walnut Room, strolling the aisles of Sears for Craftsman tools or redeeming S&H Green Stamps...