Superman vs Captain America by Alex Ross

This is an original pencil sketch by the artist on 8" x 10" paper. The sketch comes framed as pictured. The sketch has images of Captain America from Earth X and Superman from Kingdom Come facing off. There are a couple of other thumbnail elements on the page as well. I believe this was likely a study done for a Wizard magazine cover project.
They did a special Alex Ross issue many years ago that featured these Alex Ross versions of Captain America and Superman on the cover, though the pose on the printed issue was quite different. The page is signed by Alex Ross.