[TowerTalk] identify Hygain rotor

[WW3S]

I have an older Hygain rotor, it has the brake wedge.....on the bottom 
is stamped:

4244 (and then I think its a S with an X over it) and underneath the 
part that X'd out is CS

and then on the bottom, off to the side, is 5  402

I thought it was a tailtwister....it definitely has a brake wedge

On Norms rotor service page it says you need to remove the bottom to see 
the numbers.....does that mean split the case? Trying to avoid having 
ball bearings going everywhere....I'd like to sell it, but unsure 
whether its a 4 or a TT.....