Contains the booklet version of U.S. Scott 804 (2 copies), the 1 cent Prexie/Prexy issue picturing George Washington,  from the Presidential issue of 1938, on an advertising cover for the Hotel Avery in Boston, Massachusetts. The cover front includes a picture of the hotel and the reverse has the hotel's logo and street location. The cover, which was mailed to Charlestown, Massachusetts, has a August 8, 1941 slogan cancel saying "BUY DEFENSE SAVINGS BONDS AND STAMPS".