Medieval dagger?

[wolviex]

To be sincere, my knowledge on medieval knives isn't big. I believe it wasn't rule to make knives in one piece. You can find many pieces where hilt and pommel are cast and made separately. On this ebay knife it's hard to tell is the hilt made in one pice with tang, or is it just the effect of corosion. But knives like this happen and here you have some examples of knives from 13-15th centuries.
Regards!