Just over 3 1/2” total length. Thick section for slashing. Straight back with curved edge point. Whittle tang, to secure it to the wood, bone, or antler grip, now perished.
(See https://leatherworkingreverend.files.wordpress.com/2009/07/dsc01382.jpg and https://inhabitat.com/melting-glaciers-reveal-items-lost-in-the-stone-age/ for similar examples with original grips.)
Stable oxidation with a good profile, as typical for water finds. These side or pouch knives were among the most treasured possessions for Vikings, rather than the large seax with which they were buried. They likely had spiritual significance to the owner during his life. A fine weapon, suitable for throat slashing as well as organ depth thrusting attacks. Excavated and professionally conserved with Plexiglas display easel.