Identify these strings?
 

Can anyone tell what brand of strings these are? Plain brass ends, no silk, tapered on the E, A, & D string. They feel like nickel.

SIT Powercore Nickel Plated Steel.

However, I think they got rid of the small diameter winding that goes around the core...

Here is an old shot of one I have:

Thanks. The strings are a few years old.

New ones are the same just dont have the fine winding around the core. The only exposed core nickel strings I know of!