Sold for lower than 1.33

http://www.tf2outpost.com/trade/13009832 - 1 ref

http://www.tf2outpost.com/trade/13031731 - 1.22

http://www.tf2outpost.com/trade/13016082 - 1.22

Selling/sold for 1.33

http://www.tf2outpost.com/trade/13038315 - 1.33

http://www.tf2outpost.com/trade/13035238 - 1.33

http://www.tf2outpost.com/trade/13030170 - 1.33, sold

http://www.tf2outpost.com/trade/13022961 - 1.33

http://www.tf2outpost.com/trade/13022813 - 1.33, sold

http://www.tf2outpost.com/trade/13039525 - 1.33

http://www.tf2outpost.com/trade/13038997 - 1.33

http://www.tf2outpost.com/trade/13037536 - 1.33

http://www.tf2outpost.com/trade/13025818 - 1.33

http://www.tf2outpost.com/trade/13021464 - 1.33

http://www.tf2outpost.com/trade/13014431 - 1.33

http://www.tf2outpost.com/trade/13009766 - 1.33, sold

http://www.tf2outpost.com/trade/13005466 - 1.33, sold

Unsold higher than 1.33

http://www.tf2outpost.com/trade/13033230 - 1.39

http://www.tf2outpost.com/trade/13019280 - 1.44

http://www.tf2outpost.com/trade/12664616 - 1.44

http://www.tf2outpost.com/trade/13030296 - 1.44

http://www.tf2outpost.com/trade/13027928 - 1.55, 9 hours(young, will see how this turns out)

http://www.tf2outpost.com/trade/12988998 - 1.55, 1 day

http://www.tf2outpost.com/trade/12906443 - 1.55, 4 days

http://www.tf2outpost.com/trade/13016152 - 1.55, 19 hours (young)

http://www.tf2outpost.com/trade/12877533 - 1.66, 4 days

http://www.tf2outpost.com/trade/12974567 - 1.66, 2 days

http://www.tf2outpost.com/trade/12991973 - 1.66, 1 day

http://www.tf2outpost.com/trade/12833863 - 1.66, 6 days

http://www.tf2outpost.com/trade/12991906 - 1.66, 1 day

http://www.tf2outpost.com/trade/12716955 - 1.66, 1 week

http://www.tf2outpost.com/trade/12946998 - 1.66, 2 days

http://www.tf2outpost.com/trade/12908061 - 1.66, 4 days

http://www.tf2outpost.com/trade/13003666 - 1.66, 1 day

http://www.tf2outpost.com/trade/12975650 - 1.66, 2 days

http://www.tf2outpost.com/trade/12836989 - 1.66, 6 days

http://www.tf2outpost.com/trade/12917404 - 1.66, 3 days

http://www.tf2outpost.com/trade/12681543 - 1.66, 1 week

Classifieds show unsolds at 1.66 for several days and even another at 1.22: http://i.imgur.com/SeHJYYO.png

1.66 clearly does not belong in the range of this hat anymore. The only sales are at 1.33 and below.