Classifieds at the time of posting this suggestion.

The age of the listing(s) are shown in the screenshot(s) rather than the last bump.

Unsolds and item histories are presented in chronological order according to the screenshot(s).

x5 for sale at 1.5 Keys - http://prnt.sc/cjdfqx

Unsold for 4 hours http://backpack.tf/item/4667693865

Unsold for 14 hours http://backpack.tf/item/5062026235

Unsold for 2 hours http://backpack.tf/item/4692738572

Unsold for 1 day http://backpack.tf/item/4317303639

Unsold for 2 days http://backpack.tf/item/4296975248

-

x2 for sale at 1.55 Keys - http://prnt.sc/cjdg84

Unsold for 1 day http://backpack.tf/item/4278081974

Unsold for 5 days http://backpack.tf/item/4268371077

-

x1 for sale at 1.6 Keys - http://prnt.sc/cjdgbl

Unsold for 11 days http://backpack.tf/item/5027754443

Outpost sellers.

paint.com

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