[Proof below] This hat is currently 1 of 1 and had one sale thus far and currently has one active trade.

Sale

http://www.tf2outpost.com/trade/11524240 - For Blizzardy Storm Fed-Fightin' Fedora (~ 1.2 buds) + Orbiting Planets Buccaneer's Bicorne (~ 1 bud) + 1 bud = ~ 3.2 buds

http://i.imgur.com/CdOXlDw.png (found this proof on the active trade)

Active Trade - 1 month - Bumped 2 days ago

http://www.tf2outpost.com/trade/11570384

Declined/retracted offers:

Stormy Storm Blighted Beak (not valid, offerer no longer has the Beak) = ~ 3 buds

Orbiting Fire Familiar Fez + 12 keys = ~ 1.8 buds (presumably retracted)

Cauldron Bubbles Stout Shako = ~ 2.3 buds (presumably retracted)

So one sale giving us the price an 3 unfulfilled offers, possibly the easiest suggestion I've done so far!

Forgot to add the declined Nuts n' Bolts VRH ~ 1.7 buds. Also been offered a Terror-Watt Magistrate's Mullet ~ 2 hours ago (no price).