Only 2 of these I think and I unboxed one, the other has just been traded for a burning Pencil Pusher (4-4.3).

burning pencil calculated w/ overpay is about 3.8 buds.

OP Links:

http://www.tf2outpost.com/trade/10486737

Then selling the Pancil

http://www.tf2outpost.com/trade/10893075

As a side note there was once 3 of these hats, but it looks like it's been deleted, an old link to the lost one:

http://www.tf2outpost.com/trade/8114818

Previous new price suggestions by me as the range was wrong:

http://backpack.tf/vote/id/51974c4dba25365214000009

and

http://backpack.tf/vote/id/519750b6ba2536a41d000009