Thank you. As I indicated in my post, I do not even know if this rifle still exists, so proof marks, chamber casts, photos are, I am afraid, out of the question.
Perhaps I should have phrased my question differently. Who were the principle German, Austrian or Swiss O/U rifle manufacturers around 1908 to 1912? I can find no clear record of the stated Mueller, but I know nothing about rifle manufacturing in the German speaking nations at this time. Were any of these firms known to export O/U rifles? Are there any references to a Mueller in appropriate reference books?
Tim
