Sadly, this isn't the cover to some delightful comic in which author HP Lovecraft and inventor Nikola Tesla team up as steampunk ghostbusters. But Travis Pitts' imaginary print ad is wonderful in its own right.
When I was working in Hollywood, one of my company's clients had a really fun script where Tesla was a heroic inventor facing off versus the evil, mad genius Thomas Edison. Both were using very steam punky technologies, far in advance of anything they really made (but some of the Tesla stuff is of course alleged). Flying sleds, ray guns, all of that fun stuff. It's been a long time so I might be mis-remembering, but I think the story even involved time travel.