I have just purchased this P47 windscreen for my world war II aviation collection. I have found a series of numbers stamped to the side of this piece. will this number tell me anything about the aircraft that this piece was supposed to be attached to? I looked on Wikipedia and it seems all of the p-47 numbers start with a "42" or "43" etc. is this just the serial number for the cockpit windscreen alone and not for a specific aircraft?