Craftable = Uncraftable. Just being lazy.

All proof belongs to this guy: http://backpack.tf/vote/id/546105f9ba8d8882428b45af

Sellers below 3.66:

http://www.tf2outpost.com/trade/23121074 -3 ref, out of stock for >week

http://www.tf2outpost.com/trade/23361241 -3.33 ref

Sellers above 3.66:

http://www.tf2outpost.com/trade/23641433 -3.66 ref

http://www.tf2outpost.com/trade/23639486 -3.66 ref

http://www.tf2outpost.com/trade/23632598 -3.66 ref

http://www.tf2outpost.com/trade/23633560 -3.88 ref

http://www.tf2outpost.com/trade/13832722 -4 ref, has sold many

http://www.tf2outpost.com/trade/23602617 -4 ref

http://www.tf2outpost.com/trade/12868027 -4 ref

http://www.tf2outpost.com/trade/23638809 -4 ref

http://www.tf2outpost.com/trade/23278499 -4 ref

http://www.tf2outpost.com/trade/23647486 -4 ref, very young

http://www.tf2outpost.com/trade/23644054 -4 ref

http://www.tf2outpost.com/trade/23643694 -4 ref

http://www.tf2outpost.com/trade/23641120 -4 ref

http://www.tf2outpost.com/trade/23623657 -4.11 ref

http://www.tf2outpost.com/trade/23646386 -4.33 ref, very young

http://www.tf2outpost.com/trade/20165523 -4.33 ref, unconfirmed sale prices, sold out

http://www.tf2outpost.com/trade/14273960 -4.66 ref

http://www.tf2outpost.com/trade/15153277 -5.33 ref (outlier)

Solds below 3.66:

http://www.tf2outpost.com/trade/23646870 -3.33 ref, sold in <1 hour without a bump

http://www.tf2outpost.com/trade/23645241 -3.33 ref, sold in <2 hours

http://www.tf2outpost.com/trade/23609959 -3.33 ref, sold without a bump

http://www.tf2outpost.com/trade/23610254 -3.33 ref, sold without a bump <1 day

http://www.tf2outpost.com/trade/23615990 -3.33 ref, sold without a bump

http://www.tf2outpost.com/trade/23627077 -3.33 ref, sold <16 hours

http://www.tf2outpost.com/trade/23624650 -3.33 ref, instasold

http://www.tf2outpost.com/trade/23630013 -3.33 ref, sold <1 day without a bump

http://www.tf2outpost.com/trade/23642376 -3.44 ref, sold without a bump

Solds at or above 3.66:

http://www.tf2outpost.com/trade/23643051 -3.66 ref, sold in <7 hours without a bump

http://www.tf2outpost.com/trade/23641849 -3.66 ref

http://www.tf2outpost.com/trade/23632598 -3.66 ref

http://www.tf2outpost.com/trade/23608523 -3.66 ref, sold 3

http://www.tf2outpost.com/trade/23621815 – 4 ref, (unconfirmed)

http://www.tf2outpost.com/trade/23609234 -4 ref

http://www.tf2outpost.com/trade/23606644 -4 ref (not in bp)

Buyers:

http://www.tf2outpost.com/trade/23623657 -3.66 ref

http://www.tf2outpost.com/trade/23644054 -3.88 ref

Classifieds:

4 ref x 24

4.33 x 3

5 ref x 2

1 key x 1