This is an Official Marvel Comics ONE OF A KIND original colorist art/color guide page used in the direct production of the vintage CAPTAIN AMERICA Annual 7 comic book from 1983. The Marvel colorist for this 1980's Capt America story was Bob Sharen. This is the ONLY color guide of this page in existence (it's 1 of a kind), and it was used in the production of the actual published comic book by Marvel's Production Staff.
NOTE: As you can see from the scan, the bottom of this color guide page has a tear, and this is common with original colorist's artwork. Back in those days, color guide art pages were never expected to be saved, handled gently, or collected many years later. This is normal for production artwork like color guide colorist's art.
NOTE: Color guide artwork is different from black and white original art. Color guides (colorist's artwork) are re-sized copies of the pencil and ink original artwork that are assigned to the issue's colorist, and then hand colored by that colorist. Colorguides usually measure about the same size as the published comic book, and some have "color codes" for the printers to follow. Because most modern comic books are now colored by using computers, there are no more color guide pages being produced, which makes the surviving color guide pages highly collectible.