Hulk #181 the First Appearance of Wolverine?

Wolverine first appeared in the final "teaser" panel of The Incredible Hulk #180 (cover date October 1974) written by Len Wein and penciled by Herb Trimpe. The character then appeared in a number of advertisements in various Marvel Comics publications before making his first major appearance in The Incredible Hulk #181 (cover date November 1974) again by Wein and Trimpe.