Well, it could have been a clearer pic, but a P2 caseback with a six-digit number would probably have an "A" under the serial number, to differentiate it from a P3, which had serials in the same number range [otherwise you could have two different models using the same type caseback, with identical numbers, which would tend to make for some very problematical bookkeeping]. Just went back and looked at the auction pic...still looks like a "2" to me, but I believe you. I have 3 14K P3s on leather in the 137000 block [031, 039, and 127], and 2 3130s in the 136000 block [721 and 623], so, at 136383, this fits right in as a 3115 part; the chance that this just a co-incidence approaches zero...IMHO, of course

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