The deedlit cel on ebay looks more authentic than 
that AMG cel?  what are you smoking?  the lines 
on the AMG cel are nice and clean *in all spots*, 
something that is virtually impossiblle to do 
when you're hand inking.  just look at the detail 
of the head piece on the deedlit cel--if an 
animator was that sloppy they'd have to redo the 
cel.    

My guess is that if that cel isn't production, 
it's still 'official' by the studio.