welcome to t-net. That looks pretty sweet, but I am a novice with such. no doubt a whiz- bang pro will help you out soon. You have posted it in the right place for answers.
Examine the shape of the letters "US" on it closely. Note that the curves at the bottom of the U and the arms of the S have "flats" on them. Sorry, but that means it is a late-1800s to early-20th-Century rosette, not a civil war one.
At the top of this discussion thread, just above the first post, you'll see a horizontal bar with a bunch of options. Click on "Thread Tools," then click on "Mark this thread as solved." But note, you have to be logged in to do that.