Beginning with Vol. 4, #1 (Sept. 7, 1948), the title changed to "Treasure Chest of Fun & Fact", with the final word now singular. A source notes that with Vol. 23, #1 (Sept. 7, 1967), the title changed a final time, exchanging the ampersand for "and", although Vol. 21 No. 1 (Sept. 9, 1965) and featuring "The Champ is Back" as the cover story uses the ampersand in place of the word "and". Many very early issues were cover-titled simply "Treasure Chest" without the otherwise ubiquitous subhead.