Unsold for 3 keys :

http://www.tf2outpost.com/trade/9564134 < 4 days old, no bump

http://www.tf2outpost.com/trade/9590966 < 3 days old

http://www.tf2outpost.com/trade/9585146 < Selling 2 for 3 keys each, 3 days old, NO BUMP (2 keys+gift wrap offer)

Unsold for 3.5-3.75 keys :

http://www.tf2outpost.com/trade/9383986 < 1 week old (3.75 keys)

http://www.tf2outpost.com/trade/9619170 < 2 days old (3.5-4)

http://www.tf2outpost.com/trade/9648199 < 1 day old (3keys+3ref)

http://www.tf2outpost.com/trade/9670854 < 9 hours old (3keys+2.33ref)

Unsold for 4 keys :

http://www.tf2outpost.com/trade/8965236 < 4 weeks old

http://www.tf2outpost.com/trade/9275245 < 2 weeks old

http://www.tf2outpost.com/trade/9241688 < 2 weeks old, a guy added before the last suggestion got accepted(6 days ago)

http://www.tf2outpost.com/trade/9480440 < 1 week old

http://www.tf2outpost.com/trade/9506422 < 6 days old

http://www.tf2outpost.com/trade/9553770 < 5 days old

http://www.tf2outpost.com/trade/9573100 < 4 days old, last bump 2 days ago

http://www.tf2outpost.com/trade/9618469 < 2 days old

http://www.tf2outpost.com/trade/9611556 < 2 days old, no bump

http://www.tf2outpost.com/trade/9634771 < 1 day old

http://www.tf2outpost.com/trade/9647608 < 1 day old

http://www.tf2outpost.com/trade/9634231 < 1 day old, no bump

http://www.tf2outpost.com/trade/9641326 < 1 day old, no bump

http://www.tf2outpost.com/trade/9627024 < 1 day old, no bump

http://www.tf2outpost.com/trade/9674053 < 7 hours old

- I wont make 3-3.5 because there is no more proof for 3 keys and i looked at every page on outpost .