real_ronin677 - I use a civil war pattern similar to the picture posted by COZ earlier in this thread. I just modify it to suit whatever style I'm making. The seam lines are proper for most all 19th century uniforms from any country with minor changes to cuffs or collar, depending on what you are making. You can find these from civil war sutlers stores or even e-bay. They have various names, Shell Jacket Pattern is one of the most common. Always ask if there are complete sewing instructions before you buy though. The pattern I have is pretty old, from the early 1980's and it has almost nothing in the way of instructions. Since I don't know what your skill level is, I wouldn't recommend that particular pattern unless you have a lot of experience. If you are wanting to do an historical style jacket, stay away from the commercial patterns from the large companies like Simplicity or Butterick. They don't have the right seam lines on any of the men's patterns I have seen. They are ok for basic halloween costumes or to modify for something else but not for a real period piece. The smaller independant companies usually do a better job at getting the historical patterns more correct. I hope this helps. If you have any other questions, let me know. I can check my bookmarks later and see if I saved any of the civil war pattern sites.