What grade is this case? (B1)

 

 

 

1401215-1c-347-10x-1024x1024 1401215-1c-347-10x4-1024x1024 1401215-1c-347-20x-1024x1024 1401215-1c-347-20x3-1024x1024 1401215-1c-347-20x4-1024x1024 1401215-1c-347-20x5-1024x1024