Since I had to mini-suggest this for the Spellbound Harmburg war, I decided I might as well just dig a bit more and suggest for this as well.

http://www.tf2outpost.com/trade/17758909

--Offered Searing Grimm Hatte (2.4)

http://www.tf2outpost.com/trade/19146778

--Sold for 2 Buds and a Stormy Mirror (2.75, rounded to 2.8)

http://www.tf2outpost.com/trade/19728260

--Offered a O. Fire Brown Bomber (2.5 Buds)

http://www.tf2outpost.com/trade/19680028

--B/O 2.8 Buds, no offers

http://www.tf2outpost.com/trade/18453590

-- Offered 2 Buds 10 Keys (2.5 at the time)

http://www.tf2outpost.com/trade/18267187

--Used to buy a MN Ubersternmann. It was a bulk deal and I'd have to go through their bp histories to find out what was traded, so I didnt because it's not useful anyway. I'm just leaving this here in case anyone wants to price the Ubersternmann.

http://www.tf2outpost.com/trade/19688734

--Sold to Discojack for 2 Buds (Quicksell, less than a day)

http://www.tf2outpost.com/trade/19622592 (hi there d0)

--Sold for DBD Sack (1) + Bubbling Scope Slopers (1.5, Outdated) = ~2.5

As a side note, a lot of the ones on the market are duped. I made trying to find solds very difficult. But, the price for this has pretty much stayed constant since the last suggestion it seems. I'm pretty sure I didnt miss anything, but if I did, say so below in the comments.