There are lots of different models of puukkos depending of use and area where they are coming;
this is a short list i borrowed from webpages of Taisto Kuortti.
http://personal.inet.fi/koti/taisto....ypit.htm#etela
Vöyri`s puukko: Earliest model of puukko. Handle and sheath made from metal (brass).
Härmä`s puukko: Maybe best known type of puukko in finland. usually there`s two puukkos in same sheath; small and big one.
IMG]http://etelapohjanmaa.fi/kulttuuri/puoti/tuotekuvat/68_puukko_ja_helavy+.jpg[/IMG]
Kauhava`s puukko: welldone and expensive.
Kainuu`s puukko: Or tommi puukko. simple and beautiful.
Sami puukko: Also called as Lapinpuukko, always beautifully decorated.
Other styles include: Rautalammi`s puukko, Toijala`s puukko,
Pekanpään puukko, ilves-puukko, wartime puukkos made in the front,
and many more are yet to come...
-o