Grayish blue areas are usually a good sign of recolored
IHC's but this one is borderline. I'd crack it out and send it to NGC -- word around town is that PCGS has been making some very dubious "questionable color" calls lately.
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ANA - EAC - TNA - SSDC - CCT #890
"Most of the things worth doing in the world had been declared impossible before they were done." -- Louis D. Brandeis