Howard the Duck King-Size Annual #1, published by Marvel Comics in September 1977 Bundled with other comics as indicated in the handwritten note taped on there in the 1970s  It appears to be Annual #1 issues of  Howard the Duck, Invaders, Warlord, Tarzan & Eternals from the same period Each comic sealed at time of purchase and bundled in one outer sealed bag since the 1970s
Bundle as shown unopened by us