Classifieds at the time of posting this suggestion.

The age of the listing(s) are shown in the screenshots rather than the last bump - Unsolds and item histories are presented in chronological order according to the screenshot(s).

x4 for sale at 9.44 Refined - http://i.imgur.com/L4o8REG.png

Unsold for 2 days http://backpack.tf/item/1344321322

Unsold for 1 day http://backpack.tf/item/1360420796

Unsold for 4 hours http://backpack.tf/item/1340638726

Unsold for 11 hours http://backpack.tf/item/1343584699

-

x2 for sale at 9.55 Refined - http://i.imgur.com/VLT8cpM.png

Unsold for 3 days http://backpack.tf/item/1330483630

Unsold for 2 days http://backpack.tf/item/1338738926

-

x1 for sale at 9.77 Refined - http://i.imgur.com/c2Kw4SZ.png

Unsold for 6 days(Duplicated) http://backpack.tf/item/1352839561

-

x2 for sale at 10 Refined - http://i.imgur.com/UWk94hB.png

Unsold for 24 days http://backpack.tf/item/1355397536

Unsold for 6 days http://backpack.tf/item/1330332968

Outpost sellers.

http://www.tf2outpost.com/trade/28419229 - 10 Refined - Item has changed hands but I can't find out what it sold for; http://backpack.tf/profiles/76561198095529828#!/compare/1471132800/1471305600

Seemingly nothing as the buyer gave nil items to the seller.

Discounting this 'sale'.

I am excluding all trades on Outpost that haven't been bumped for 1 day or more.