the manufacturer's records...certainly much stronger & more compelling evidence than hearsay or conjecture. These same records have been used to confirm & verify many, many "UFC's" and other chips over the years. There are certain people that have records from various chip manufacturers and other manufacturers (such as TR King I believe) that will search their records to identify a chip but require payment for them to search their records. These records are invaluable, especially in a case such as this where someone may be trying to sell a confirmed Canadian chip as being from Las Vegas. As a collector of obsolete Las Vegas chips, I appreciate the dissemination of this kind of information. Steve B