This week we will be taking a look at the introduction of Wolverine in The Incredible Hulk #181. While Hulk #180 did have a Wolverine appearance on the last page, this issue was the first to feature Wolverine throughout the issue. First up we have the original character design by John Romita Sr. I believe that these sketches are recreations of the originals.
Here's the classic cover by Herb Trimpe, along with some later Wolverine and Hulk commissions.
Check back later this week for more Wolverine Vs. Hulk!