Jim Steranko is one of those guys who everyone loved in the late 1960s/early 1970s but some reason he isn’t spoken of with the same kind of reverence as Jack Kirby, Gene Colan, Steve Ditko, and other name-brand artists of that same era. But he was one of the most original. Look at that splash page: Who was doing noir like that back then? Nobody. He was a master of panel- and page-design, highly stylized, and truly an artist of and for the 1960s.
Stan Lee got the writing credit for this issue, but it’s clear that Steranko either did some of the writing or his style greatly influenced the script. It went instantly from being an adventure book just last issue at the helm of Jack Kirby to one emphasizing spy gear and espionage.
Also: This is the first appearance of Rick Jones as Bucky and of Madame Hydra. Great issue.