Proof

http://www.tf2outpost.com/trade/19179716

Sold for Scorching Flame Bombing Run (2.6 buds * 0.9 = 2.34 buds) + Tyrant's Helm Circling TF Logo(2.35 buds * 0.9 = ~2.12 buds) (Refer to mini suggestion) + white Bill's hat(7 keys) + Strange Sandman(4.66 refs) + 3 keys

Backpack of seller

http://backpack.tf/profiles/76561198044239172?time=1397359799 Before

http://backpack.tf/profiles/76561198044239172?time=1397372400 After

Backpack of buyer

http://backpack.tf/profiles/76561198088373551?time=1397286000 Before

http://backpack.tf/profiles/76561198088373551?time=1397394433 After

Total: ~ 5 buds

Mini Suggestion for Tyrant's Helm Circling TF Logo

http://www.tf2outpost.com/trade/19372395 Willing to sell for 2 buds and 6 keys = 2.3 buds

http://www.tf2outpost.com/trade/19252235 b/o 2.35 buds

http://www.tf2outpost.com/trade/18797911 Sold for Unusual Le Party Phantom Circling Peace Sign 2.4 buds

Range of 2.3-2.4 buds. Taking 2.35 buds as the mini suggestion price.

Another sale within 2 months that i didn't use because it involved 4 unusuals.

http://www.tf2outpost.com/trade/19016956

http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet/

"A note about complex sales

Multi-hat trades involving 4 or more hats should be avoided when pricing unusuals unless the suggestion is for a high end hat (worth >10 buds). Basically, if a hat is a small piece in a large deal, that sale should not be used as proof."