Grandpa
Marttiini is pretty much the Mora of Finland. You got yourself a keeper there. They are not renowned for super high end glamour-steel but they're made well, come sharp, and are easy to maintain. I am actually looking at maybe buying the wooden handled version of that very knife for full-price...about $25. Finland is a very knife oriented place, being famous for the Puukko. Even the Swedish Mora is a version of the Puukko which is not so much a Finnish design (considering national borders) but rather a Sami invention. The Sami are the arctic reindeer people of that entire region (crossing national borders). Those folks know knives. Finland is a little like Japan in that regard...they appreciate traditional knife design and that model there is a traditional blade with a modern handle...nice mix.
Outstanding pawn-shop find. Nice work.