This is a Bausch & Lomb Balvar 8A 2.5-8 rifle scope. This scope has no internal adjustments; the adjustments are made in the mounts. In this system, the scope is held against the bases by spring tension. This was designed so that the scope could take a hard blow, or be removed, and still return to zero.
This scope is in excellent overall condition. There are just a few small marks in the finish and a few small scratches on the eyepiece adjustment ring.
The glass is crystal clear with no noted defects and the scope has a tapered crosshair.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE