New to Me

A friend who used to train with Sonny has moved on to other things, and just gave me the training blade that he got from him.
I have one like it, but because each one was designed and fabricated separately, each is unique in it's own way. (Here is a pic)
The blade shapes of all his Short Pinuti are very similar, but this one has a hooked handle. It also has a wooden end piece, where mine is just reinforced leather.
The hooked shape and the wooden pommel serve a particular function, the grip on the weapon can be completely lost, yet opening the hand assures that the sword stays in the holder's possession.
Nice.