This needs a raise.

Classified ads at the time of posting:

http://imgur.com/BrgYHKs

https://backpack.tf/classifieds?item=Bounty%20Hat&quality=6&tradable=1&craftable=1&australium=-1

1*3.66 refined: https://backpack.tf/item/202354405

3*3.77 refined: https://backpack.tf/item/198270867 , https://backpack.tf/item/196236608 , https://backpack.tf/item/200882377

1*3.88 refined: https://backpack.tf/item/196860291

1 buy order at 3.88 refined: https://backpack.tf/u/76561198305676157

Bought one for 4 refined:

http://imgur.com/DIgmFQp

Buyer at 3.77 refined:

http://www.tf2outpost.com/trade/28682332 (~2 months old)

Remarks: Seller at 3.66 refined is countered by the buyers in the classified ads at 3.66 refined: https://backpack.tf/u/76561198340960601 , https://backpack.tf/u/76561198342484070

Taking a conservative rise approach as the 3.88 refined buyer keeps relisting and is low on metal at the moment.

Bought one for 3.77 refined:

http://imgur.com/a/xcB0c

New buyer at 3.77 refined:

http://imgur.com/a/N6beX

http://backpack.tf/u/76561198316193894