Does your cover looks like this?

no, it is just like the normal nc23 one but almost mirror finnish and has a silver head also, quite horrible to look at as I like the gold that they normally are.

As said probably buffed. Mine are excatly the same.
I hate it. Thats my next upgrade definitly. Well i say upgrade, just buy a second hand casing and swap them over

Have you got a price in mind for the polished ones? Iv got a polished frame and swing arm amongst some other various polished bits on one of the nc23's im working on atm and kinda like the idea of polished stuff (it may just be a phase I'm going through) if you already have these bits polished and they just need a buff up I'l take them as it'll save me a lot of effort.
Im in no hurry at all really, so anytime you feel like the change in the next year or so just pm me or something.
Cheers
Adrian

im up for a swap wicked.
will sort it out sometime this winter