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With the quantities they have and the time frame, I would almost guarantee these are the revised 2nd printing copies.
I would either contact MM or Greater Than Games to get a definitive answer, though.
EDIT: I just checked the GTG web store and they have it in stock there, too. It has to be the 2nd printing because I know they didn't have any copies of it at all before.
Yes, these should most definitely be 2nd edition printings at Miniature Market. We just got the game back in stock at our warehouse, and a majority of our games are bought by Miniature Market first (since they're only about 2 miles away from the warehouse in St. Louis).