My assumption that this is a TypeC was clearly premature!
A couple things I should have noticed on this gun are the smoothe taper to the barrel - the Type Cs have a step in the barrel out past the for end like a military barrel.
The flat panels on the stock under the rear bridge are not as would be on a typeC and only on the early TypeBs if I am not mistaken.
The military floor plate and lack of a set trigger threw me a bit too, but the Bs could be had with any floor plate release desired although most had a lever i would suspect and a DST or not.
The grip could be had as a pistol grip with a cap or a rounded grip as this one has.
Any statements above may be totally false...heh,heh,heh.

Man, there is a lot to know about these original Oberndorf Mausers! And this one is a beauty!