*****There was one on our range bulletin board for some time - about the same time-frame (early 1970's), also 16 gauge in excellent shape for $300 OBO. Unless you need the money or the space in your safe, it's just a nice gun to keep.
Remarkably, on the same board, someone was selling a used Perazzi MX8 for trap shooting with case and I think an extra barrel and was asking $4k for it and sold it at their asking price in less than a week. It was definitely more of a workhorse gun than some of the works of art ones a couple of the skeet and trap guys have (MX 12 SC3) which I think cost over $25k new.