For what one more opinion is worth, I have to totally agree with Stophel's thoughts on this gun. I have seen 6 or 7 of these in the last twenty years, three of them were signed on the locks by Swedish makers, one, not signed, had the funky Swedish snap lock. They typically had fowler-ish looking stocks, rounded cheek rests and wooden boxes, though one thing I have noticed is that the inside of the box on nearly all the ones I have seen, rather than being truly rectangular, the side nearest the buttplate ramps down to the bottom, rather than being straight up and down. As for wood types, I have seen ones that looked like walnut, maple and beech. I think they blended a lot of Continental styles and influences in Scandinavia, along with local innovation, just as we did, and ended up with a similar result. Some of them may well have come over during the 18th century, but I suspect that some may be more recent imports. I don't know if wood analysis will help or not on this one. If I remember correctly last time I sent wood to be looked at about 10 years ago, while they could determine if walnut was American or European, at that time they told me maple species in Europe and America looked so much alike under the microscope that they would not hazard to declare it to be one or the other. Perhaps in the years since they have cleared that up?
Alan