No price, none of the proof is found by me.

http://www.tf2outpost.com/trade/18507658 - 10 (his b/o for the three was 10, so shouldn't be more than that)

http://www.tf2outpost.com/trade/18301756 - oc veil (b/os on the veil at 10, so no more than that)

http://www.tf2outpost.com/trade/18041421 - secret crown (he later had a b/o on the crown at 9)

http://www.tf2outpost.com/trade/17715247 - miami beak + 5 keys - b/os on the beak at 8

Disco cold killer sale is no more than 9 with b/os at 9

http://www.tf2outpost.com/trade/18472322

sold for a eerie front runner,orb.fire bonk boy, electrostatic fed 10.2

http://www.tf2outpost.com/trade/18565380 sold with 8 for a strange miami bonk boy 11

"So conservatively, basing values on b/os (which is still too high), the sales here are at 8.3, 9, 9, 10, 10, 11

I'd probably throw out the sales at 8 and 11 and narrow the range down to closer to 9-10."

Feel free to counter / support blind polar bears and Mr.Potato's proof. Vote based on proof presented, not blindly!