Old school these blades are not, new age definitely not too.
Take a look at these http://www.miuragiken.com/products/products_collection/index.html
There are Miura blades and guaranteed to cause some salivation.
This is not a plug since you would have your local distributor, but my partner and I distribute Miura clubs in Asia and Oceania and know firsthand what Miuras are all about…enjoy the link!