my last suggestion crashed (steam ingame browser D:<) anyway, my 2nd suggestion and i know i need more proof. dont know how to find solds :(

Sold

http://www.tf2outpost.com/trade/11683370 < 1.33

http://www.tf2outpost.com/trade/11368567 < 1.33

http://www.tf2outpost.com/trade/11682726 < 1.66

http://www.tf2outpost.com/trade/11680035 < 1.66

http://www.tf2outpost.com/trade/11421262 < 1.66

http://www.tf2outpost.com/trade/11482410 < 1.66

http://www.tf2outpost.com/trade/11486132 < 1.66

http://www.tf2outpost.com/trade/11511904 < 1.66

http://www.tf2outpost.com/trade/11473790 < 1.66

http://www.tf2outpost.com/trade/11476266 < 1.77

http://www.tf2outpost.com/trade/11383149 < 1.77

Unsolds

http://www.tf2outpost.com/trade/12908941 < 1.66 (6 hours)

http://www.tf2outpost.com/trade/12914776 < 1.66 (1 hour)

http://www.tf2outpost.com/trade/12678146 < 1.66 (1 week)

http://www.tf2outpost.com/trade/12502762 < 1.66 (1 week)

http://www.tf2outpost.com/trade/12877845 < 1.88 (1 day)

http://www.tf2outpost.com/trade/12867656 < 1.88 (1 day)

http://www.tf2outpost.com/trade/12630467 < 2 (1 week)

http://www.tf2outpost.com/trade/12874322 < 2 (1 day)

http://www.tf2outpost.com/trade/12582674 < 2 (1 week)

http://www.tf2outpost.com/trade/11754806 < 3 (1 month)

Unsolds (bazaar.tf and trade.tf)

http://trade.tf/deals/search/Sell/All/Triboniophorus%20Tyrannus/all/1 < 1.66 (over 15 trades for it, even under 1.66!)

http://bazaar.tf/trade/316167 < 1.88 (12 hours)

http://bazaar.tf/trade/245445 < 1.88 (1 month)

http://bazaar.tf/trade/311998 < 1.88 (3 days)

http://bazaar.tf/trade/302648 < 2 (1 week)

http://bazaar.tf/trade/102455 < 2 (6 months)

http://bazaar.tf/trade/212362 < 2.33 (2 months) (has desc tag)

http://backpack.tf/classifieds/search/151/6/0, none for 1.88. 3 for 1.66 (exluding me D:) and even 1 for 1.44! ALL less than 1 week unsold

please dont be overly aggressive, i have tried my best on this price suggestion. dont think it turned out too bad :)