The "explanation" for that is that it's a default date. For instance in Excel if you put a zero in a cell and then format it as a date, you don't get an error, you get: "1/0/1900" It's plausible that some computer systems interpreted no data as 1/1/1918 (possibly during a data transfer from an older system). If so, then this proves the rolls are not maintained at all, which proves opportunity for fraud, but does not prove fraud actually took place.
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