4 months outdated. Only sale within 2 months that i can find.

Sale #1

http://www.tf2outpost.com/trade/20318436

Sold for Terror-Watt Minnesota Slick(1.5 buds * 0.9 = ~1.35 buds) Refer to pending suggestion + Strange Festive Minigun with parts(~17.2 keys * 0.9 = ~15.5 keys) + Non-tradable Strange Summer Shades(8 keys * 0.9 = 7.2 keys)

Backpack of seller

http://backpack.tf/profiles/76561198070653812?time=1405148400 Before

http://backpack.tf/profiles/76561198070653812?time=1405436832 After

Backpack of buyer

http://backpack.tf/profiles/76561198067217997?time=1402470000 Before

http://backpack.tf/profiles/76561198067217997?time=1405580400 After

Total: ~2.5 buds

Current seller

http://www.tf2outpost.com/trade/21656116 b/o 2.5 buds

Pending Suggestion

Terror-Watt Minnesota Slick

http://backpack.tf/vote/id/53ef6ab84ed7b8c1348b4778