Dredging up this old post as I stumbled upon it while searching for other Emil Flues info. I happen to be the owner of the 1881 Marlin Flues scheutzen rifle mentioned by Robert Chambers in this thread. I live just 8 miles from where Emil Flues's brother lived here and this is a rifle Flues built for his brother. It is actually chambered in .40-60 Marlin cartridge, not .45-70 as mentioned.
I bought this 1881 over 30 years ago when a gun store in town was closing it's doors and I found this fine rifle in a barrel of "junk guns". Absolutely nothing wrong with it, and no idea why it got in the junk barrel? I walked past the barrel and saw the Farrow buttplate sticking out, and pulled it out of the barrel. When I saw what it was I headed straight to the counter and bught it without even looking it over closely. Didn't know who Emil Flues was when I saw his name stamped on the barrel and buttplate, but it was too neat to pass up!

[Linked Image from i.imgur.com]