It seems like the third one on the right does not fit with the other 2. I cropped down the fourth one, it will be attached to 171 maybe.
1st: Niornian sword. 60cm long. It is kinda rocksplitter, can cut trough rocks.
2nd: niornian stabbing sword. Bypasses non living objects like armor, clothes and cuts all living thing, like your bellys. Depending on how hard your skin is. Cares non for magic
3rd: night sword. Nothing special. Does not rust. This cannot be said from the other two that does.
Use them by ease!