Gentlemen...edify me!

I am curious about the Oberndorf Type C mausers. I know they were a "cheap" rifle, built on military actions, but there really isn't a lot of information on them floating around out there in internet land.

How common are they? From the lack of references, I'm guessing not very.

How collectible are they? Worth holding as an investment? Value?

I have been trying to find a copy of Mr. Speed's book, but they aren't easy to find at a reasonable price anymore. Bleh.

Any information you can give me would be appreciated. I like the look of the ones I've seen, and they look like they would be a very practical hunting rifle.

Thanks!