When collectors provide information about a hoard of chips, we add it to the ChipGuide. If no one tells us, then we don't know. There is an UPDATE button on every casino and on every item in the ChipGuide to make it as easy as possible for collectors to provide information to us. But, again, if no one tells, then we won't know. The ChipGuide only collects and disseminates factual information provided by collectors.