Here are some recent photos taken of Alexandr's rackets:
As mentioned by others before, it appears to be a Wilson Pro Staff Original 6.0 95 with the paint scheme of a Wilson BLX Pro Staff 95.
It has a 16x18 string pattern, and the photos of the throat shape and bumper guard would suggest that this is the case.
It is a nice little touch that Wilson have incorporated the "16x18" into the paint scheme as well, however if you look closely, the string pattern in the specs in the throat of the racket still says 16x19!
I owned couple of his rackets in k-factor PJ, definitely PS 6.0 95 Original, but not that head light balance (I estimated it as 7pts strung instead of 10pts), weighted 345g strung and had really really tiny sweet spot. Also had around 330g swing weight and it was not as effortless to swing as with PS 6.0 95. Definitely Wilson used PS Original mold but I think it had different layup and 100% different specs. Racket seemed to be much more demanding than Original. Just my 2 cents..
^Given how "stretchy" he is, I think he'd loose his arm if the racquet was more headlight. He has insane racquet head speed. BTW, when Federer received his first custom Wilson racquets, they made it extremely close in looks to the retail version. Or maybe the other way around. It was hard to tell which one was which one without swinging, exception made of few obvious graphical differences. Very accurate paintjobs. http://tt.tennis-warehouse.com/showthread.php?t=459853