Tjelvar on Gotland are presumed to be from 750BCE, and I don't think that is the oldest in Scandinavia.
Oh, nice. That's the one I couldn't find a Wikipedia article on, though I see now it's mentioned under Boge (with a picture). https://en.wikipedia.org/wiki/Boge,_Gotland
alt Hacker News
Oh, nice. That's the one I couldn't find a Wikipedia article on, though I see now it's mentioned under Boge (with a picture). https://en.wikipedia.org/wiki/Boge,_Gotland