9-5/8x11-3/8" flattened cereal box from the 1950s. The front panel features large Shredded Wheat biscuit. Back has full panel featuring "Free Inside! U.S. President Plaque" text and shows large image of George Washington premium plaque. Two children are seen pointing to nine additional plaques, though images are not clear. Side panel features ad for "Hydro-Prop Boat" premium which was available for one box top and $1. Box has been neatly flattened and has some scattered aging and aged strips of tape w/tape staining to top/bottoms of flaps. Fine. Comes w/original mailer box, which is complete w/typed Nabisco address label. Label has trace of aging/wear. Box is VF overall. Contains complete set of 33 thin vacuformed plastic plaques measuring 2x2.75", each depicting different US President along w/their name and term dates. All Presidents are featured (Grover Cleveland has one plaque w/separate listings for both his terms), including then current President Dwight D. Eisenhower. Mint. These premium plaques were issued one per box and the complete set was available for four box tops and 50¢.