I made a Marshall rifle many years ago, but do not have any photographs. However, when I made the rifle I talked to Frank Bartlet, who had built one a couple years earlier, and he gave me milar drawing of the original. I haven't seen it in around 30 years, but I will see if I can find it. It would be of help. I went a bit smaller than the drawing, and my rifle still was a big rifle. Great free hand rifle, and hunting rifle. I killed a deer at 92 paces with it and it was like I had turned a switch off. It was a 58 cal Getz Marshall profile. I will get back with you Mon or Tue. by email and let you kow if I could find the drawing. I stored it in a tube, but have moved one time since then and am not sure where I stored it. I have thought about building myself another using Jim Chambers parts set. The lock he uses in his parts set is a bunch faster than what I used many years back. If I build another, I will use Jim's parts.
Roger