Not all pieces turn out well after firing !! If the pottery had to trash them,, that would be a loss of revenue !! Selling as “seconds” made it a break almost even proposition !! They were not getting rich anyway !! Some were barely keeping their heads above water !!
I think some of the seconds went home with the employees.!! pretty sure that many of those are being sold now !! I occasionally see some with what is referred to as “errors” !!