Proof below (5 sales).

5 month-old price.

Sales:

http://www.tf2outpost.com/trade/14024452

-b/o 8 buds

-seems to have been sold/bought for burning crocleather=5.8 buds

-buyer's bp:

http://backpack.tf/id/76561198054491764?time=1380006000 before

http://backpack.tf/id/76561198054491764?time=1380092400 after

-seller's bp:

http://backpack.tf/id/76561197989107593?time=1380006000 before

http://backpack.tf/id/76561197989107593?time=1380092400 after

http://www.tf2outpost.com/trade/13019991

-burning spartan, b/o 10 buds

-sold for cosa+pe spartan=~5.8 buds

-also offered on another: http://www.tf2outpost.com/trade/12269008

http://www.tf2outpost.com/trade/12634885

-sold for lantern cosa and kill a watt bucket=5 buds

http://www.tf2outpost.com/trade/11393410

-3 months old, sold for 2 buds+$148 paypal=~5.7 buds

http://www.tf2outpost.com/trade/10388209

-4 months old, sold for cloudy moon fruit shoot+steaming kabuto=5 buds

Sales: 5, 5, 5.7, 5.8, 5.8

All sales are within suggested range. Please vote accordingly.