For the sake of organizing 1 key=3.66 ref

Proof:

Classifieds at 5.33, 6 ref: http://backpack.tf/classifieds/search/last%20breath

Offered 5 ref:

http://www.tf2outpost.com/trade/8562784

http://www.tf2outpost.com/trade/8563169

Offer for 1.4 keys/5 ref (1 key + 1.33 ref): http://www.tf2outpost.com/trade/8517530

Offer for 1.5 keys/5.33 ref (1 key + 1.66 ref): http://www.tf2outpost.com/trade/8517530

Unsold for 1.4 keys/5 ref (1 key + 1.33 ref):

12 hrs http://www.tf2outpost.com/trade/8566687

4 hrs recent bump http://www.tf2outpost.com/trade/8574345

Unsold for 1.5 keys/5.33 ref (1 key + 1.66 ref):

1 week but barely bumped http://www.tf2outpost.com/trade/8335008

2 days recent bump http://www.tf2outpost.com/trade/8524133

1 day recent bump http://www.tf2outpost.com/trade/8557462

2 hrs http://www.tf2outpost.com/trade/8577640

Unsold for 1.6 keys/5.66 ref (1 key + 2 ref):

4 days auto-bump http://www.tf2outpost.com/trade/8476258

5 days but barely bumped http://www.tf2outpost.com/trade/8450669

Unsold for 1.7 keys/6 ref (1 key + 2.33 ref):

1 day recent bump http://www.tf2outpost.com/trade/8548542

1 day recent bump http://www.tf2outpost.com/trade/8554769

1 day recent bump http://www.tf2outpost.com/trade/8549459

Unsold for 1.8 keys/6.66 ref (1 key + 3 ref):

1 day recent bump http://www.tf2outpost.com/trade/8540280

1 day recent bump http://www.tf2outpost.com/trade/8558216

11 hrs recent bump http://www.tf2outpost.com/trade/8568552