1.4 keys seems like a popular price to sell at and most are unsold. 1.5 is still possible so I'm keeping that in the range.

Sellers for 1 key

http://www.tf2outpost.com/trade/15113350 Quick

http://www.tf2outpost.com/trade/15117514 Quick

http://tf2tp.com/trade.php?trade=9843256 Quick

Seller for 1.1 keys

http://tf2tp.com/trade.php?trade=9843636

Sellers for 1.2 keys

http://www.tf2outpost.com/trade/15117723

http://www.tf2outpost.com/trade/15110871

Sellers for 1.3 keys

http://www.tf2outpost.com/trade/15119976

Sellers for 1.4 keys

http://www.tf2outpost.com/trade/15122274

http://www.tf2outpost.com/trade/15085342

http://www.tf2outpost.com/trade/15110940

http://www.tf2outpost.com/trade/15116327

Sold for 1.5 keys (Still possible)

http://www.tf2outpost.com/trade/15103932

http://www.tf2outpost.com/trade/15118663

http://www.tf2outpost.com/trade/15084560

http://bazaar.tf/trade/489822 --> http://www.tf2outpost.com/trade/15120362

Unsolds for 1.5 keys

http://www.tf2outpost.com/trade/15107855 (Young)

http://www.tf2outpost.com/trade/15095520 (1 day)

http://www.tf2outpost.com/trade/15054023 (3 days)

http://www.tf2outpost.com/trade/15025267 (4 days)

http://www.tf2outpost.com/trade/15039827 (4 days)

CLASSIFIEDS

http://imgur.com/YS5P5vI

1 seller for 1.3 keys

3 sellers for 1.4 keys

5 unsolds for 1.5 keys