Proof below. 7 month-old price.

None on market, very few recent sales.

Sales:

http://www.tf2outpost.com/trade/14832354

-sold for 3 buds

-notable offers:

blizz stahl+1 bud=2.9

http://www.tf2outpost.com/trade/14830748

-seems to have sold for non-tf2 items

I checked quite a few other pe panamas and they haven't sold in a long time. The same hat I provided above's last 'sale' might not have been one, but anyway the 'buyer' has a private bp and profile and I can't tell from either bp histories. I guess the best we can do is use the only usable and trackable sale. Also I don't even know if any will come on the market later looking at it now.