Congratulations you have succesfully figured out the function, the manufacturing method, the country of origin and indeed the maker. Many companies in Sweden have or have had the half-post Snapsbottle in their program, including Skruf, Orrefors, Alsterfors and Johansfors. Holmegaard in Denmark was another important maker. That the label was uncertainly afixed should not bother you. It is unlikely that anyone would pretend it is something else. Alsterfors is good enough.