Two very different cowboy-themed pin-ups here. The first is from Mighty Marvel Western #46 and looks like Jack Kirby to me.
Take a look at the bigger version and judge for yourself.
And from Punisher Magazine #13, this was when Frank Castle went to Australia. I’m guessing that the Stroman byline is for Larry Stroman.
The larger version is over here.
true, more than likely kirby, considering his output, but don’t overlook dick ayers, who inked a lot of kirby’s stuff, and was a decent artist himself, who knew how to make it look like kirby, after jack left a series, to create the next marvel character. also consider herb trimpe.