A conservative bump, perhaps too early to make a wider range.

It was such a pain to find proof without killstreaks and strange parts

Solds at 5 ref:

http://www.tf2outpost.com/trade/18459164 - sold for festive huntsman (5-5.33 ref)

http://www.tf2outpost.com/trade/18457367 - 5 ref, w/o a bump

http://www.trade.tf/trade/534214413

http://www.tf2outpost.com/trade/18455155 - with 1 bump

Solds at 4.66:

http://www.tf2outpost.com/trade/18485945 - w/o a bump

Solds at 4.55:

http://www.trade.tf/trade/534054707

Solds at 4.44:

http://www.tf2outpost.com/trade/18461189 - 4.44, with 1 bump

Solds at 4.33:

http://www.trade.tf/trade/533993671

http://www.tf2outpost.com/trade/18484272 - w/o a bump

http://www.tf2outpost.com/trade/18479784

http://www.tf2outpost.com/trade/18479455 - sold 2 w/o a bump

http://www.trade.tf/trade/534177071 - sold in a couple of hours

http://www.tf2outpost.com/trade/18474414 - lots of ads, not in bp anymore

http://www.trade.tf/trade/534155945

http://www.trade.tf/trade/534144509

http://www.trade.tf/trade/534146293

http://www.trade.tf/trade/534147963

http://www.trade.tf/trade/534137566

http://www.tf2outpost.com/trade/18466987 - w/o a bump

http://www.trade.tf/trade/534138769

http://www.trade.tf/trade/534120917

http://www.tf2outpost.com/trade/18464144

http://www.tf2outpost.com/trade/18463375 - w/o a bump

http://www.tf2outpost.com/trade/18463282

http://www.trade.tf/trade/534247823

http://www.trade.tf/trade/534239389

http://www.trade.tf/trade/534228910 - w/o a bump

http://www.trade.tf/trade/534230941

http://www.trade.tf/trade/534217326

http://www.tf2outpost.com/trade/18457998

http://www.trade.tf/trade/534213342

http://www.trade.tf/trade/534203214 - w/o a bump

http://www.trade.tf/trade/534203174

http://www.tf2outpost.com/trade/18452790 - w/o a bump

http://www.tf2outpost.com/trade/18451243 - sold 4 w/o a bump

http://www.tf2outpost.com/trade/18448591 - w/o a bump

And some instasolds below 4.33 (pretty hard to find them):

http://www.tf2outpost.com/trade/18483499 - sold in 3 hours

http://www.tf2outpost.com/trade/18461969 - w/o a bump

http://www.tf2outpost.com/trade/18455010 - w/o a bump

http://www.tf2outpost.com/trade/18451310 - w/o a bump

http://www.tf2outpost.com/trade/18477879 - w/o a bump

http://www.trade.tf/trade/534118040 - closed 6 hours ago, the same time he created the trade

http://www.tf2outpost.com/trade/18453340 - 4.11, w/o a bump

Average trade.tf trading price is 4.33