Tim,

I agree with Andy that this is a proper Austrian NCO bayonet. Look at ebay for the distinctive knots but be careful as they, like everything else, have been faked. Imperial knots will usually have the cypher of the current Emperior while later ones will typically have the uncrowned double eagle or the white/red/white Austrian rondel on the stem.

Here is an example of an Imperial officer knot with the cypher.

George

Austrian_Imperial_Sword_Knot.JPG (39.59 KB, 56 downloads)

"You can't please everyone, so you've got to please yourself." Ricky Nelson