Hey Guys...I'm looking for an optics guru out there who can help me with this scope....it's marked J Unertl Opt Co. Serial #: 59113. It's an awesome looking scope, mounted on a Winchester Model 52. The mount rings are also stamped Unertl so I think it's all original. I've seen wide ranges of prices for these and I'm not sure how to figure out exactly what I've got. Any help would be greatly appreciated!