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).

x1 for sale at 1.75 Keys - http://i.imgur.com/my0oXNQ.png

Unsold for 18 days http://backpack.tf/item/4975733893

-

x2 for sale at 1.85 Keys - http://i.imgur.com/LnUROGq.png

Unsold for 24 days http://backpack.tf/item/2356860477

Unsold for 24 days http://backpack.tf/item/2344370363

Outpost sellers.

http://www.tf2outpost.com/trade/28446065 - 2 Keys 5 Refined - Countered by bot buyers.

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