How to tell the difference between Aerial Acoustics Model 8 vs 8b


I will be auditioning a set of Aerial Model 8's and not sure if they are 8's or 8b's.  Is there an easy way to tell? I thought the 8b's had the longer front grill and the logo at the bottom.  Looking at images online has not been helpful.  

thanks in advance

Peter  
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They were 8b's. Long grill, gold logo/badge much lower on the front.  Same standard Model 8 serial number label on the binding post plate.  Appears the Aerial do not print a new model label for the 8b. 

I bought them, by the way. Sound and look amazing - rosewood.