I recommended previous suggester to resuggest with this range, but it seems he won't. So I already provided some proof in the previous suggestion.

It's so hard to find clean kunais, with no killstreak

Instasolds at 1.66:

http://www.tf2outpost.com/trade/18382509

http://www.tf2outpost.com/trade/18375444

http://www.tf2outpost.com/trade/18375235

http://www.tf2outpost.com/trade/18364052

http://www.tf2outpost.com/trade/18359179 - 1 day ago, unbumped, but already sold 11 hours ago

http://www.tf2outpost.com/trade/18353767

http://www.tf2outpost.com/trade/18352884 - sold 4 @ 1.66 each with 9 views lol

It sells quickly with less than 10 views, with no bumps or 1 bump. And I found no unsolds at 1.66

Solds at 2 ref:

http://www.tf2outpost.com/trade/18353312

http://www.tf2outpost.com/trade/18365597

http://www.trade.tf/trade/533650016

http://www.tf2outpost.com/trade/18379776

http://www.trade.tf/trade/532736477 - 2.33

Sellers at 2 ref:

http://www.tf2outpost.com/trade/18386425 - 2 hours

http://www.tf2outpost.com/trade/18378338 - 14 hours

http://www.tf2outpost.com/trade/18371768 - 22 hours

+1 seller @ 2 ref on classifieds, afk

Perhaps some of sellers will become solds during this suggestion, cos it's fairly easy to sell for 2 ref and very hard to find clean kunai.