Skippy, I can't comment. Sold to me as a "sniper". I've disassembled it over to check. I've searched the interweb pretty hard to find any mounts that look like this one. I agree it does look like it sits a bit high, but I can't find any modern ones that look anything like it. The wood cut looks like it is in fact original.
The scope is 100% authentic and it fits perfectly to the mount. The odd part is it shows the same age and wear as the rest of the rifle.
I'd be curious to find out myself.