Thanks to all for the notes!! In looking at it more this past week, I kind of thought it was in the military service at some point because the bolt was swapped as the serial number doesn't match (possibly soldiers looking to get better accuracy). With a bit of parkerizing missing it must have been used a bit. What was astounding was the stock, which has no dents or scratches on absolutely museum quality walnut wood. So, I guess it was re-stocked later before it got out into the commercial world. I've had it for six years now and can hardly wait to take it to the range,
Again thanks to all for your comments and wisdom.