2 months old price, NecroTed to the rescue! (Key: 5.44)

Sellers

http://backpack.tf/classifieds/search/360/1/0 - 1 at 1.3, 1 at 1.5

1

http://www.tf2outpost.com/trade/11946068 - 1:1 with items, min. 1 key

http://www.tf2outpost.com/trade/12287473 - 11 hours

http://www.tf2outpost.com/trade/11937850 - 1 week

1.1-1.4

http://www.tf2outpost.com/trade/12137030 - 1.2, 5 days

http://www.tf2outpost.com/trade/12283904 - 1.2, 13 hours

http://www.tf2outpost.com/trade/12245890 - 1.4, 1 day

http://www.tf2outpost.com/trade/12261225 - 1.1, 1 day

http://www.tf2outpost.com/trade/12005099 - 1.3, 1 week

http://tf2tp.com/trade.php?trade=9537742 - 1.4, 19 days

1.5

http://www.tf2outpost.com/trade/12284346 - 13 hours

http://www.tf2outpost.com/trade/11619391 - 3 weeks

http://www.tf2outpost.com/trade/12195216 - 1:1 with Kringle (1.5-1.75)

http://www.tf2outpost.com/trade/12279583 - 17 hours

http://www.tf2outpost.com/trade/12177198 - 3 days

http://www.tf2outpost.com/trade/12178411 - 3 days

http://www.tf2outpost.com/trade/11980127 - 1 week

http://www.tf2outpost.com/trade/12260105 - 1 day

http://www.tf2outpost.com/trade/12089601 - 6 days

http://www.tf2outpost.com/trade/12199995 - 3 days

Sold

http://www.tf2outpost.com/trade/12287473 - 1 key

http://i.imgur.com/tnh7dGS.png - Painted, 1 key

http://www.tf2outpost.com/trade/12261225 - Read below

http://www.tf2outpost.com/trade/12258293 - This trade is the same guy as above, but above is 1.1 and this is is 1. Both are the same Hachimaki. Im guessing he instead sold for 1, but maybe he sold for 1.1

Conclusion

A lil' hard to to price this one bases off the proof, but some sellers are willing to go to the low-end. Plenty of unsuccessful sellers, but Im just doing a conservative bump. If I need to resuggest, please leave a comment. Thanks ^.^