Indeed you are right. "Greif" is the trademark of GREIFELT & Co in Suhl.
The bolt handle is a heavily remodeled original Mauser one, bearing all the Oberndorf proof marks and SN.
The rifle is of very high quality and it's a pleasure to shoot.
It has been sold and it's now in the hands of a top notch Mauser collector.
For info, the Greener safety is still made and available in the white from Recknagel in Germany.
DORLEAC
www.dorleac-dorleac.com