Thanks for Clarıty.

Sale [1] - 1hour

Clean Frobsite Front Runner for 53keys pure + 19keys unusual taunt

http://www.tf2outpost.com/trade/27803470

X = 53 + 19

X = 72 keys

Unusual Frobsite Front Runner history

http://backpack.tf/item/4012013366

Unusual Taunt history

http://backpack.tf/item/4442291205

Buyer profile & backpack -

http://steamcommunity.com/id/ivandekarg

http://backpack.tf/profiles/76561198014501079

Seller profile & backpack -

http://steamcommunity.com/id/imwai/

http://backpack.tf/profiles/76561198070635520

Proof -

http://i.imgur.com/8UcvP0A.png

http://i.imgur.com/fSDOWGI.png

http://i.imgur.com/JDOfXOS.png

No any valid seller below this price

No any valid sale within 4 months

I don't really know how to count in unusual overpay but I trust brown belt>myself :P

Maybe the unusual taunt updated http://backpack.tf/stats/Unusual/Taunt%3A%20Deep%20Fried%20Desire/Tradable/Craftable/3008 11days ago ?IDK

Take a final price at 72keys