J.P. Lower spent 5 months touring Europe with his wife in 1884-85. I surmise that he made several contacts with gun firms there, as was his practice in the states. Side by side, this gun looks just like a Prussian Charles Daly, right down to the ribbon logo. I have seen three other totally different shotguns with no other marking other than his. Currenly have a hammer SXS with a left hand under lever with back action locks. Lowere sought contracts with many firms and at times built guns from surplus parts.