Well I went back to visit my Daughter and her husband over Christmas, and transferred the gun to my ownership. I also managed to get some proper diamond magnas from a fellow board member that had them in the "for sale" section of this forum.
I was happy to find the barrel was 6.5" long, but when I started to clean and de-rust the gun I noticed a few things I need to look for next time I find a gun like this. At some point holes were drilled and tapped on the top strap for mounting a scope , and for what must have been a support for the scope on the top of the barrel, a portion of the screw or a plug has been left behind, marring the nice checkering.
The rear sight assembly is from another model, as it is too short, is not fully checkered, and the back portion of sight base does not butt up to the frame.
The front sight may not be correct, as I have read posts that said most 6.5" models had ramp front sights.
The best news, since it is a shooter, it is accurate, and has had some work in the past that makes it a dream to shoot.
I'm a bit concerned about the odd (to me) drag line on the cylinder.
I'm going to try to post images in the next few minutes.