Ken, the mid 1950's era Leupold Mountaineer is the scope Jack O'Connor had mounted on his famous No.2 rifle. It was the predecessor to the M7 series and are not constantly centered reticle scopes. Leupold can clean & check the adjustments if desired, but if it needs parts or replacement lenses, you might be out of luck. I have one & its good for a period rifle setup, but certainly not up to the standards of modern optics.
