the rear sight on my model b mauser 30-06 is the two folding and one standing sight.all the photos of those sight that I have seen are marked 100 200 and 300 meters.mine is 150 200 and 300.the sight is numbered to the gun.seems odd to have a 150 and 200 meter sight.yet it is marked plainly that way.perhaps ordered that way.any thoughts.john