Very interesting. By the Consol Conversion to percussion and the double headed eagle of the Dual Monarchy you can say it is definitely Austro-Hungarian, but I am not sure which model it is. The brass bands are unusual for an A-H musket but it may signify naval or police use? What is the barrel length? Whatever model it is, A-H guns of the pre-Lorenz era (pre-1854) are scarce in this country, not terribly valuable but hard to find, you are lucky to have it.