This issue is a variant of The Avengers (Marvel, 1963 series) #240 [Direct Edition]. There exist further variants.
Memo from Gruenwald; letters on The Avengers #235; Question of the Month "Who is your favorite author?" asked to Stern, Milgrom, Sinnott, Novak, Scheele, Carlin, Gruenwald and Shooter; Special Announcements Section. Letters from Steve Williams, Liam Toner, Carlos Bermudez