.2 keys = 1 ref

.3 keys = 2 ref

Sold

http://www.tf2outpost.com/trade/14812304 (1 key) qs

Unsold

http://backpack.tf/classifieds/search/id/52001b72ba2536f207000005 (1 at 1, 3 at 1.3)

http://www.tf2outpost.com/trade/14822995 (1 key, 4 hrs)

http://www.tf2outpost.com/trade/14362662 (1.2 keys painted gold, 3 weeks)

http://www.tf2outpost.com/trade/14286044 (1.2 keys, 3 weeks)

http://www.tf2outpost.com/trade/14747083 (1.2 keys, 4 days)

http://www.tf2outpost.com/trade/14721088 (1.3 keys painted BaF, 6 days)

http://www.tf2outpost.com/trade/14212199 (1.3 keys painted drab tincture, 4 weeks)

http://www.tf2outpost.com/trade/14706913 (1.3 keys painted rustic, 6 days)

http://www.tf2outpost.com/trade/14138196 (1.3 keys, 1 month)

http://www.tf2outpost.com/trade/14589494 (1.3 keys, 1 week)

http://www.tf2outpost.com/trade/14570904 (1.3 keys, 1 week)

http://www.tf2outpost.com/trade/14750907 (1.3 keys, 4 days)

http://www.tf2outpost.com/trade/14772049 (1.3 keys, 3 days)

http://www.tf2outpost.com/trade/14791799 (1.3 keys, 2 days)

http://www.tf2outpost.com/trade/14819473 (1.3 keys, 17 hrs)

http://www.tf2outpost.com/trade/14839747 (1.3 keys, new)

http://www.tf2outpost.com/trade/14771359 (1.3 keys willing buyer)