Interesting archaeological specimens! Since the Scandinavians and the Finns came from separate directions, and do not share language groups, or culture, it goes to show how basic tools cross lines that language and politics cannot. An east-traveling Scandinavian meets up with a Finn, likes his knife, and probably with sign language and show of coins or something to trade makes a deal. He then goes back to Scandinavia and uses the Finnish knife as his model. Scandinavians traded and sometimes conquered and colonized from Greenland and Iceland to the west, and down the Russian rivers, and even to Sicilia. Finns are part of an eastern peoples, but whose origins are still not entirely understood. He rubbed shoulders with the Sami, Karelians, Ugrians, Balto-Slavs, Russians. The knife was so central in pre-modern times that men, women, and even older children carried them. Migrating peoples and locals must have developed thousands of hybrid styles.