Nike Air AF1: Help ID symbol on interior insole?

[vfort]

I have never seen this particular symbol and have been unable to find it anywhere, which makes sense since I am not sure what it is so not sure how to look for it?  They are from a pair of Nike Air AF1.

 

[not locked]

Limited edition

 

[vfort]

So it is LE whereas I thought it was IE!  I feel so stupid!  Thanks.