Not certain of this, but:
Case had a pattern called a '523-3 1/4', which featured an upswept skinner-type blade like that one (same size also), and the aluminum 'knight's head' pommel like yours. See the knife at 3rd from right in the photo below. All of the searches I've done so far, only show these in stag handles. I have a guidebook to knives, which mentions a leather-handled version produced in the years 1959-1965. Don't have any pics of this one (yet).
(photo found in Google Books search results of 'American Premium Guide to Knives & Razors: Identification and Value Guide', by Jim Sargent, page 342)
As for the use of the knife, it's basically a hunter/skinner type for small game.