Cool little collection so far. A lot of nice knives for not having many (most collections start out with cheapies).
BTW, they just started making these knives that can fold in half to store the blade in the handle (the handle becomes the sheath). Don't worry, you usually have to press something before you fold the blade up. These knives are called folding knives, you may be able to find one on the internet, or at a knife store.