Sold:

http://www.tf2outpost.com/trade/16346105 - instasold for 3

http://www.tf2outpost.com/trade/16348963 - instasold for 4

http://www.tf2outpost.com/trade/16348802 - instasold for 4

http://www.tf2outpost.com/trade/16363845 - sold for a key

http://www.tf2outpost.com/trade/16343183 - sold for a key

There's almost no solds to find ;~;

As for the tryhards:

http://www.tf2outpost.com/trade/16260726 - 1.2

http://www.tf2outpost.com/trade/16356941 - 1.2

http://www.tf2outpost.com/trade/16339742 - 1.2

^ 1< key is not possible

Selling for 0.9:

http://www.tf2outpost.com/trade/16345349

http://www.tf2outpost.com/trade/16364383

And 4 hours sellers seem to be inactive/have abandoned posts

http://www.tf2outpost.com/trade/16328967 - never bumped

http://www.tf2outpost.com/trade/16228114 - bumped once, has a willing buyer that claims not to be responded.

http://backpack.tf/classifieds/search/id/52a261214cd7b8fe5f8b4580

Classifieds has a rather young-ish list for 4 ref and several for a key.

I'm rather unsure about this, actually. 4 ref has sold almost instantly and a single seller is probably not enough to define a low range, and 0.6-1 doesn't seem like something suitable.