Hi guys!
I just bought a NWT MBMJ off threadflip.com
Seller claims it is from Bloomingdales and it does have a tag with a bloomingdales code attached.
http://www.threadflip.com/items/1156418-marc-jacobs-black-weekend-bag
I have not been able to find any information on this bag online but threadlflip assures it is authentic. I emailed customer service at MJ and they responded with "We appreciate your devotion to the Marc Jacobs brand and please accept our apologies as we are unable to authenticate our items. Our system does not recognize the style number MA6033 nor the barcode 80616629478."