This shuttle originally is protech world class, is just that some shops request protect OEM for them to put the name Nemesis
We normally use World Class and I tried Nemesis when playing with a friend's group. Nemesis is more like PT-10 or ClassicPro type. Feels lighter as well. Not as lasting as well e.g you get what you paid for.
The price for world class and nemesis 1 is the same. Are you sure you are playing with nemesis 1, and not nemesis 2, 3, 4, or 5?
Did not see any numbers on the tube just Nemesis. Colour scheme on the tube is like the Masterpiece colours, not B&W as per the pix(s) I could locate on the net. I tried checking the Protech International website catalog and there is no Nemesis in it e.g http://protech-sports.com/230_175_0_4/Web/WebProductByCategory/Protech/index.html