As I recall, Whisker displayed a Deringer 'Dream Rile' in on of his many books. it had raised carving., many engraved silver inlays and is just a super fine rifle. Sorry, I don't recall which book; perhaps on of his "Behold..." books. And, somewhere he does give a biography in another book. Given that he produced many hand guns from the small to fairly large and many rifles for the trade, it would seem that his military production was not so great. Thank you for posting the photos of your new find. I have enjoyed seeing it.
Dick