I've just seen 2 black Box 32 HAC's on ebay, and they both have the Birkin closure (round turnkey, not square); does anybody know why??? I thought one of the main differences between a HAC and a Birkin, besides the shape, is the different shaped closure.....I'm expecting a black Box HAC, but I do want it with the HAC turnkey....Can anybody enlighten me??????????TIA