data. I would refer to it quite often. As I recall, when I would do so for a particular letter of the alphabet, that search would be saved onto my computer. There are many unusual chips and obscure casinos on the Staeffler site that are NOT on the ChipGuide, mostly because collectors have not encountered them again. Or, nobody has gone through the effort of scanning and submitting for the Guide. I would send scans of any "old and outdated" chip finds to both John Kallman and the ChipGuide, but there weren't a lot of such additions. Can only find so-many mysteries in csaino show mystery boxes and at flea markets!