I guess I need one as well
Chris Evans was nice enough to help me with an almost identical example. Mine is a small one and just 24cm in its scabbard. I have seen some similar ranging up to quite large with that much length just in the blade. There is a bit more background shared in this thread.
http://www.vikingsword.com/vb/showthread.php?t=10522
I do know mine has been an everyday companion here for the past decade or so. Mine is a bit more tired it seems.
Cheers
GC