This is a Haenel Mod. 1909, but restocked, bolt handle altered and fitted with the terrible Redfield mounts.
Haenel made many M88 comission rifles and carbines for the German army up to 1898. They also made several grades of sporting rifles on M88 actions. Being without German military orders after 1898, they tried to modernize the 88 action by adding a staggered collumn mag with their own patented follower, a gas flange on the bolt and thus compete with the M98 Mauser. In 1909 they streamlined the action somewhat. In the end they could not compete with Mauser or Mannlicher-Schoenauer, so WWI put an end to production. The late Lud Olson once called them "rarer than hen's teeth".
Here is the front page from the Haenel 1909 catalog.

On top is my 8x57I Haenel M1900, high #9 grade, below my 9x57 M1909 #5 utility grade.

My M1909 again. Xausa, only a few weeks ago you had this rifle in your own hands!