I'm reposting with more info (see previous ad#246366). I took a look again at the mirror and there is one very small smudge stuck on the surface, about 1x4mm. It may come off easily but, I didn't want to fool with it. The coating is in excellent condition and there is normal amount of dust on it.
It is center-spotted with an annular central collimation ring.
RTA = 0.41
PV wavefront -> 1/32 wave
Wavefront RMS -> 1/72 wave
Strehl Ratio = 0.992
Due to volume of responses, I've decided to not let it drag out.
I will accept the best offer by midnight tonight.