It is a beauty. I believe it is what would be classified as a "guild gun" or one that was custom finished by a local gun smith. The barrels are Krupp steel and I would bet that the lock and receiver blanks came from Suhl, quite possibly Merkel. It would be well worth mounting an appropriate period German scope on that fine rifle.
" 'To everything there is a season...a time for war and a time for peace'. and this is the time for war". Reverend Peter Muhlenberg, January 21, 1776, Woodstock, Virginia