Was it built in Backus, Minn?
Way back several years ago, there was a Casita for sale
that was built prior to the company move to Texas. We were all incredulous at first...
Anyway, I guess the 1982 could be a typo... or maybe the Casita web site isn't including the company's days in Minnesota...?
I wouldn't worry too much about the discrepancy, if the trailer's in good shape, etc.