This is the classic 24mm f2.8, one of the best wide angle lenses ever made.
What is "Nikkor-N?". "N" means nine elements. This is a non-AI lens and does not fit any modern camera without an adapter.
The lens is lightly worn and works perfectly. There is a light scuff in the center of the front element. It is very light and I can only see it with a flashlight. Otherwise, the glass is clean and scratch-free and everything works perfectly.