I wonder if there was more than one photo printed.  Yes, Michael had an original (maybe the only one). I have also seen the photo in at least one Ned Roberts book where the footnote says it came from Wolfe's collection (I assume that meant Wolfe publication).  

The original photo is approx. 3" x 5". I scanned it in using super high resolution and I can zoom in on almost any detail. I only adjusted the contrast. The original is lighter. 

I'll try to do it later on the Borchardt rifle. 

Michael had A. O. Niedner's personal photo album. A friend and I scanned many of the photos and some of them in high resolution to see more detail. 

I believe Michael owned the original rifle and I probably have photos that Michael took of the rifle as well. I'll try to get those photos on a new Post later.

I thought that Michael had tracked down all the rifles.  Maybe photographed all of them or at least knew where they were.

I also thought the men were using base band jacketed bullets as developed by Mann, with Niedner doing the rifle work.

If you were a member of a dairying family, the people who cut the hay in the hay fields and tended the cows that kept the pastures open that provided all that woodchuck habitat, you also needed your veggies.  Those came from the kitchen garden the women kept near the house.  In a night or two, the woodchucks could eat all the veggies intended to feed the family through the winter.   

And all too often, a good cow would break her leg when she fell into a woodchuck burrow.

There was more to the war against woodchucks than just the sport of hunting them with an accurate rifle.

It spent some time blowing up the picture with Photoshop and I would say the rifle is the same in both pictures. The cocking knob is very visible in the blow up. Only issue I have is if the scope is the same on both. Can't tell but very close in appearance.

I would say you are correct on the forearm however if the action isn't the same it is identical with the sloped BBlock and cocking knob and double set triggers.

It was said that he made 2 so maybe Baker owned both.
Bob

while the rifles metal works looks the same the forend is clearly different. In the color photo it appears to me to be a much later style stock.  
  It really hard to tell but there seems to be a little handi-work where the toe-line of the butt meets the back of the pistol grip. Niedner's gun stocker in Dowagiac was Tom Shellhammer (not positive on the spelling). He was well know for a little fancy work in that area and it almost became his signature.   I'm wondering of the Baker rifle may have gone back to the shop for a later, more "up-to-date", restocking.

It looks as if the scope block separation also changes from the group photo to the color pic of the rifle.  The color pic's stock certainly looks like Shelhammer's work, thus from a later era.

I had  Niedner barreled 44 1/2 with a wildcat chamber.  Michael had a set of Niedner's loading dies that matched it.  He worked up some rounds and found it shot quite well - a .28-30 necked to .228 as I remember it.  Probably another wood chuck slayer!