say you reshelled an rs turbo with the intent to make it concourse, and there were no numbers on the new shells floor wether it was from getting a rusty floor replaced or if it was a Q plate, where would this stand in a concourse show? i'd reckon on it being useless, as couldnt prove it was a proper RS shell. . whats this log book malarky. . please explain

thanks in advance, just a thought i had while talking about concourse de legancé