I recently became the new caretaker of this fine 'ol Mauser in 7x57mm. Wasn't quite sure what it was, then found the older Post showing S/N 68. This rifle is S/N 69! Always nice to find information to help understand what a rifle is and where it may have originated and why. The front ring/action screw is not wanting to budge, for now, so have not removed the stock. In looking through a Lyman Rifle and Shotgun Sights 1909 catalog, they show the Lyman 35 sight on page 24, Pricee $7.00. Wonder if the Lyman 35 was added to #68 and #69 when they arrived (however that may have happened) in the US, or installed in Germany at the time this Sporting Rifle was made? Perhaps this type/version of rifle was an import for US sales? S/N 68 shows no factory checkering; whereas #69 shows factory checkering (I feel comfortable in thinking it was factory done checkering, typical Mauser style). I wonder at the scarcity of this Model. What a current market value might be (just curious to here folks' thoughts n' input)? Any input and comments are most welcome and appreciated. It's a classic 'ol Mauser and a splendid shooter as well. thank you folks for your time in looking. regards, Bear44