Mauser 71 sporter on egun auction:
short 71 action, signed "Geb. Mauser &Cie. Oberndorf a/N Württemberg 1878" caliber not really known, maybe 9,5x47. Tubular magazine with cut off.
Barrel and system numbered 01, trigger, buttplate and stock 02.
The painted "41" on the stock is maybe an inventory number from the mauser collection. ( Doesnt fit with the inventory list in Speeds "Orig. Oberndorf sporter rifles).
This is the rifle from page 25 in Jon's book.
Rifle came 30 years ago from an uncle of an french soldier back from france to germany. The story tells that it was taken from paul Mauser personal collection.

http://egun.de/market/item.php?id=6129538