Wierd range, I know, but there are a lot offers of 1 key + 2 refs ~ 1.4 keys and most 1.5 keys trades are not so old, yet.

Sellers:

1.75 keys:

Unsold: http://www.tf2outpost.com/trade/10574365; http://www.tf2outpost.com/trade/10541764; http://www.tf2outpost.com/trade/10571891; http://www.tf2outpost.com/trade/10534442; http://www.tf2outpost.com/trade/10538131

1.5 keys:

5: http://backpack.tf/classifieds/search/942/6/0 - few hours to 4 days old

http://www.tf2outpost.com/trade/10579635; http://www.tf2outpost.com/trade/10575337 - new

http://www.tf2outpost.com/trade/10543452 - day old

http://www.tf2outpost.com/trade/10482820 - 3 days old

http://www.tf2outpost.com/trade/10397120 - 1 week old

1.4 keys:

http://www.tf2outpost.com/trade/10552090 - 1 day

http://www.tf2outpost.com/trade/10517597 - 2 days, selling 3, someone agreed

Sellers with offers:

Offer of 1 key: http://www.tf2outpost.com/trade/10374961

Offer of 1.33 keys (1st post): http://www.tf2outpost.com/trade/10494524

Offer of 1.4 keys (1 key + 2 refs, key is 4.88 - 5 refs at middle now): http://www.tf2outpost.com/trade/10574365; http://www.tf2outpost.com/trade/10489883; http://www.tf2outpost.com/trade/10490433; http://www.tf2outpost.com/trade/10374961; http://www.tf2outpost.com/trade/9624209

Buyers with responds:

Offer of 1.2 keys: http://www.tf2outpost.com/trade/10313397

Buying for 1 key:

1 agreed: http://www.tf2outpost.com/trade/10110668