Not much proof because all of the high ballers and selling at 3 ref - 1 key or people are selling ones that have fancy levels. This is all the proof at and below 2.66 ref. Since people are selling at 2 ref i'm going for 2.33 straight off the bat because it is impossible to sell at 2.66.

Selling for 2 ref

http://www.tf2outpost.com/trade/14230676 wants quick trade but unsold after 16 hours.

http://imgur.com/RUExNtV

Selling for 2.33 ref

http://www.tf2outpost.com/trade/12658730 'Round looking long named hat'

http://bazaar.tf/trade/407477 LEVEL 99 WORTH 1.8 KEYS WOTTTTT ON EATH is this guy doinn?

http://imgur.com/mLObvEE

Selling for 2.44 ref

http://bazaar.tf/trade/407833 Never sold it. Still in bp.

Unsolds at 2.66 ref

http://www.tf2outpost.com/trade/14230080 16 hours, 32 views.

http://www.tf2outpost.com/trade/14230080 16 hours.

http://www.tf2outpost.com/trade/14217216 1 day.

http://www.tf2outpost.com/trade/14195255 2 days.

http://www.tf2outpost.com/trade/14163269 3 days.

http://www.tf2outpost.com/trade/14137406 4 days.

http://www.tf2outpost.com/trade/14066664 1 week, it says added, but never bought.

http://www.tf2outpost.com/trade/14040361 1 week.

http://www.tf2outpost.com/trade/13850272 2 weeks.

http://www.tf2outpost.com/trade/13833788 2 weeks.

http://www.tf2outpost.com/trade/13869336 2 weeks.

http://www.tf2outpost.com/trade/13817206 2 weeks, but barely bumped.

http://www.tf2outpost.com/trade/13063944 1 month.

http://www.tf2outpost.com/trade/13337276 1 month.

Super low demand

http://www.tf2outpost.com/trade/13750715 offered 2-2.33 ref.

http://www.tf2outpost.com/trade/13403268 offered 1 rec.

Buyers

http://www.tf2outpost.com/search/149421953 you can look for your self