This issue is a variant of The Avengers (Marvel, 1963 series) #238 [Direct Edition]. There exist further variants.
Letters on The Avengers #233; Question of the Month "What tools do you use when plying your trade?" asked to Stern, Milgrom, Sinnott, Novak, Scheele, Carlin, Gruenwald and Shooter; Announcements Section. Letters from Mike Kanterovich, Greg Hecht, Amy Sacks, Bill McGrogan, Joy Lee Barnhart