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 1.6 Keys - http://prnt.sc/ci3oo7

Unsold for 10 hours http://backpack.tf/item/4739060736

Unsold for 6 days http://backpack.tf/item/4875229771

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x2 for sale at 1.65 Keys - http://prnt.sc/ci3oqe

Unsold for 16 days http://backpack.tf/item/1346851653

Unsold for 2 days http://backpack.tf/item/3377997545

Outpost sellers.

http://www.tf2outpost.com/trade/28472627 - 1.5 Keys - Unsold for 1 week.

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

Imgur was dead under the creation of this suggestion, using the infamous prnt.sc for this suggestion.