That leather can also be found in Sweden, This is from one of the supplier I'm using over here:
http://www.slojddetaljer.se/deptlist.aspx?deptid=136&showAll=true
The leather halfway tanned is called " Rårand/Norskt Valkläder" Now, there's another type here just called "Råläder/Lappläder"
(Raw leather/lapp leather)and the usage according to the text might be just what you're looking for Ray:
Råläder är ett helt ogarvat skinn. Det
är utmärkt om man vill ha hårda fodral
eller knivslidor. Skinnet blötlägges före
bearbetning och återfår sin hårdhet
när det torkat. Tjocklek 1,7-2 mm
Translation:
"Raw leather is totally untanned, it is perfect for that hard
sheet/scabbard. The leather is put in water before being
used/worked at and will recover the stiffness when dry.
thickness 1.7-2mm."
I hope this will give you some ideas :-)