The black cat which you mentioned is really good for a fine shred. The Finnish knife is a Puukkojunkkari brand Leukku. It's great for cutting plug and carrottes.
The Kiebitz straight razor was my grandpa's. I'll use it for fine shredding and when I can't find my cigar cutter. The elegant folder with the briar handle is a Thiers Chambriard. It's nice to have when on the go. It's a relatively safe and secure folder but doesn't lock. We don't have laws against locks, but why play around.