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).

x2 for sale at 1.7 Keys - http://i.imgur.com/xlN1l8V.png

Unsold for 18 hours http://backpack.tf/item/5082461731

Unsold for 4 days http://backpack.tf/item/5072876633

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

Unsold for 1 day(Painted A Distinctive Lack of Hue) http://backpack.tf/item/3274309640

Outpost sellers.

http://www.tf2outpost.com/trade/28482593 - 1.8 Keys - Young.

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