Thank you all. This is very interesting and will make a good background for whoever ends up with this gun.

I'll be trying for a very clear picture of the action flats after I get home from work and put up the best of the lot. At the same time I'll post the makers marks from the cited web site for side-by-side comparisons. I'm pretty sure I can come up with something usable.

I'm less sure about pictures of the pitting, but I'll try that too.