The front sight should be pinned, but it has been replaced, or at least tampered with.

My book (SCSW 2nd ed) says on page 209, that the serial number range N580000- N 700000 was 1980, so the gun in the picture has several things that are out of place.

The gun is too early to be a transitional gun, so it should be recessed. The front blade should be of the dull, nickel plated type, not blued.

The box is wrong.

The N on the frame would be correct on a -2, but it could be from a factory re-nickel job done at a much later date, while the N on the cylinder would be correct for a factory -3 cylinder that was used for a replacement, and the fact that it isn't recessed seems to indicate that is the case.

Saxon Pig-

The pictures clearly show that it is stamped 29-2, and the fact that it is pinned eliminates it from being a -3, unless that was done after the fact, then re-finished.