Archives of Masters swim Meet Results

At a recent Masters Swim meet, a swimmer told me that there was an archive of all masters meets.  He said he was able to retrieve results of a meet he was in in 1971!!  As I have looked at the USMS Historical Database, the oldest meet I found was in February 2004.  Does anyone know whether USMS has an archive of meets older than 2004?  If so, how does one get access to it?

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