10 Perfect. 
9 Nearly perfect. 
8 Excellent, without any flaws. 
7 Very good, only unimportant flaws. 
6 Good, can have minor flaws, such as bend corner etc. 
5 Good, can have small tear or other flaws. 
4 Fair, can have more than one flaw. 
3 Fair, with major flaws. 
2 Poor, missing a piece or worse. 
1 Bad, without any value 

a Has been glued to paper.