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ItemPriceTooltip gives a little info when you mouseover an item. One of the useful statistics is the number of items that fit in a stack. After the mail was lost prior to the WotLK release, Battle Tokens were remailed to you. Unfortunately, those marks didn’t delete themselves after a few days and have sat in my mailbox. I deleted a few of them when I noticed that they stacked in lots of 2147483647. I believe Lua converts a null to a -1 and therefore, the conversion results in this large number.