A beautiful NOS example of my favourite style of Japanese made Western razor. The cutting edge is only 45mm long, which is about the size of an average kamisori. It should be really agile and a pleasure to use. The steel is harder than average - I know, because I just gave the razor its maiden honing. It took longer than usual, but the result is a laser sharp edge that should be very smooth and should last for a long time.
I don't know much at all about Nobels razors, but it's obviously a very high quality tool and would have been pretty pricey in its day. Wish I needed a shave right now, but it'll have to wait until the morning