I think I have the answer for you. I was contacted by the same seller too. He provided me with the same photos so I did some research. I believe the racquet is
fake.
The first bit of proof is the placement of the paintjob in comparison to the grommets. Check out where the "Wilson" in gold is on my US BLX90 in comparison to one in the photos provided (it's WAY off):
I then went one step further and emailed a very reputable poster (BounceHitBounceHit) as he has some genuine Asian BLX90's and he confirmed that his matched my US ones and
NOT the ones sent to you of the Asian BLX being offered for sale.
So it's fake. The seller was very nice with me too and he may not even know his racquet is fake.
Hope this helps.