Three pages of these on the market. Large majority are "high and/or special leveled", have parts, in sets, or extreme highball. These are all the relevant trades I could find.. There are no 2 ref sellers at this time of posting.

Sold/Offers of 2.33

http://www.tf2outpost.com/trade/6720485 offer of 2.33

http://www.tf2outpost.com/trade/11761908 has an add for 2.33 before I bought it 8)

Sold/Offers for 2.66/higher

http://www.tf2outpost.com/trade/11720850 offer of 2.66

http://www.tf2outpost.com/trade/11710575 sold for 2.66

http://www.tf2outpost.com/trade/11681958 sold one for 2.66?

http://www.tf2outpost.com/trade/11254411 out of stock 2.66, "high-leveled"

http://i.imgur.com/ZZT7rk9.png sold for 2.66

http://i.imgur.com/tFnl9E8.png sold for 2.66

http://i.imgur.com/jld2dic.png sold for 2.66 (craft hat + 1.33)

http://www.tf2outpost.com/trade/7535896 has offer of 3 ref

http://www.tf2outpost.com/trade/10594282 offer of 3 ref, no trade gone through