Dear members good evening ( or good day

)
I received this spanish dagger / plug bayonet
Well made with a nice brass guard with dragons ?
Dolphins ? faces.
Rare ( I think ) horn handle and it's little smaller than the ''usuals'' models:
32 cm long without scabbard.
With the small dimensions, horn hilt...
Could it be used like a bayonet ?
O more an embellished look like ''plug bayonet'' dagger .