That's a very nice rifle. The pistol grip and schnable have the look of Mauser factory work, but I'm not saying it is.
The checkering and cheekpiece are lovely and while I'm not a fan of Greener safeties for function, it's cool!
I glad that you mentioned Mauser factory work, because that reminded me of this rifle that sold recently which is advertised as a true Mauser Oberndorf factory made sporting rifle
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=187052040I like nice rifles, but I can't afford most of them, so I've never owned an original Mauser factory sporter, but it seems to me that the inletting looks pretty crude. Is that typical?
