T/C Patriot

I've had it about 18 or so years.Manual was printed
in 1981.Never seen another one.R.L. Wilson is the only
place I find it but, other than value,no other info.
When were they made?How many were made?
On box-No.652 Serial# 28162
THANKS

IT'S WHAT PEOPLE KNOW ABOUT THEMSELVES THAT MAKES THEM AFRAID.