Three Months Old. Proof includes 7 actual sales in the last month ranging from 1.5 in items to 2.4 in unusuals. Highest documented pure offer of 2.1 one month ago. Setting range at 1.4-2.1.

ACTUAL SALES:

1.45 in items - http://www.tf2outpost.com/trade/9698679 - sold 1:1 for s gunslinger as advertised in trade

1.6 in unusuals - http://www.tf2outpost.com/trade/9477628 - sold here - http://www.tf2outpost.com/trade/8694246 (using the new suggested price on vivid snaggle - 1.8-2.1)

1.6 in unusuals - http://www.tf2outpost.com/trade/9506901 - according to the bp.tf history, it appears this was sold 1:1 for stormy beanie - timestamp - http://backpack.tf/id/76561198042517678?time=1364626800 (bp value when down $15 to corroborate this)

2 in unusuals - http://www.tf2outpost.com/trade/9891327 - mancer+mercs muffler+s shotgun for dragonborn - bp.tf timestamp - http://backpack.tf/id/76561198036351515?time=1365836400

2.05 in unusuals - http://www.tf2outpost.com/trade/8770032 - 1:1 for hearts larrikin

Also had an offer of 2 buds + 4 keys (highest documented pure offer on any trade)

2.1 in unusuals - http://www.tf2outpost.com/trade/10078903 - ss mancer + #73 archimedes (listed at 13) for of bubble pipe

2.4 in unusuals - http://www.tf2outpost.com/trade/9855047 (of mancer + white bills - of mancer price is old, though. Not a reliable value)

CURRENT SALES:

B/O 2.5 - http://www.tf2outpost.com/trade/10079863 - no offers

B/O 2.5 - http://www.tf2outpost.com/trade/10079670 - no offers

B/O 2.5 - http://www.tf2outpost.com/trade/10070955 - no offers

B/O 2.3 - http://www.tf2outpost.com/trade/9719637

Offers:

2 in unusuals (dragonborn if he adds - see completed sale above)

1.8 in unusuals (flies headwarmer)

1.55 in unusuals (blizz fez) - willing to take if he adds 11 (2 in unusuals)

Conclusion:

Low End: 1:1 with s gunslinger which was worth a reliable 1.4 in pure at the time. 2 unusual trades at 1.6. These three trades justify a low end of 1.4

High End: Highest sale of 2.4 in unusuals (although this is based on a 3 months old hat price). Still, there is a documented pure offer of 2.1 made 1 month ago, so using this as the high end.