The Windy City's venerable Marshall Field & Company was one of three department stores anchoring the original complex. The building, which encompassed three levels, spanned 330,000 square feet.
Graphic from Marshall Field & Company
Photo from Marshall Field & Company Annual Report 1971
A vintage snapshot shows the store's 3-level atrium.
Photo from Marshall Field & Company Annual Report 1971
Photo from Marshall Field & Company Annual Report 1971