Renaissance Dagger

[mariusgmioc]

To me, it looks like a repurposed, probably broken, rapier blade.
The way the fuller ends in the proximity of the tip and how the tip is formed are quite obvious giveaways.
The ricasso of a rapier blade is long and strong and can be reshaped into a tang easily.

[Ed]

Maybe. That was my original thinking. Thank you for your comments.