Since it seems ruktfist's suggestion was based off the sale of only one (and I own the other one now), I think it needs adjusting. Onoz I'm voting my own hat down.

I'm taking the high end from ruktfist's proof here: http://backpack.tf/vote/id/51f5b716ba2536ab2b000006 of 1.7 pure.

MrPeepers owns it and has no offers.

I bought the other for a level 42 buds + a white bills (back when they were 7.5 keys, so that's approximately 1.4 pure). http://i.imgur.com/4GuRsV3.png