I've had enough of this site.
Here are the detailed statistics for lot FR-12:
Faulty stamps: thin - 1, discolored - 5, corner problems - 9, creased - 2, missing corner - 1, torn - 2, foxing - 15 (!!!), dirty - 2, assorted minor faults - 8.
Total faulty: 45
Total problem-free: 15
(but if you consider how many were foxed and how foxing can spread under certain condition, I'm certainly not keeping those that look "good").
Garbage percentage: 64%.
