!!A QUESTION About truss rod cover of Custom24 10-top!

[fcukkk]

Hey guys,

one of my friends wants to buy a guitar "PRS Custom 24 10 top with pattern thin neck" , but he noticed that there're three types of truss rod cover showed in pictures,
"Custom", "Custom 24" and a cover without words on it.
Just wanna know , what's the differences between those ? are they just have different covers or any of them just fake PRS?

thx,

 

[Rodicus]

I have two CU24's. An early 2011 model which says custom 24. My 2012 says custom.