Sold @ 1.3 keys.

http://www.tf2outpost.com/trade/17368137 1 week ago (Premium) Selling 4. 2 left.

http://www.tf2outpost.com/trade/17533097 (Quick sale?)

Unsold @ 1.3 keys

http://www.tf2outpost.com/trade/17433882 (Non-premium) 5 days ago.

http://www.tf2outpost.com/trade/16871383 (Non-premium) 3 weeks ago. Offered 1 key and 1 ref.

http://www.tf2outpost.com/trade/17274491 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17464445 (Non-premium) 2 days ago.

Selling @1.3keys(Young)

http://www.tf2outpost.com/trade/17554134

http://www.tf2outpost.com/trade/17552784

http://www.tf2outpost.com/trade/17546872

http://www.tf2outpost.com/trade/17536777

http://www.tf2outpost.com/trade/17535813

Unsold @ 1.4 keys

http://www.tf2outpost.com/trade/17433111 (Premium) 5 days ago.

http://www.tf2outpost.com/trade/17250258 (Premium) 1 week ago. Offered 1 key and 3 refs but haven't traded.

http://www.tf2outpost.com/trade/17165746 (Premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17418394 (Premium) 5 days ago.

http://www.tf2outpost.com/trade/17330016 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17398644 (Non-premium) 6 days ago.

http://www.tf2outpost.com/trade/16961452 (Non-premium) 3 weeks ago.

http://www.tf2outpost.com/trade/16745548 (Non-premium) 4 weeks ago. Offered 1 key and 1 ref. Didn't sell.

http://www.tf2outpost.com/trade/17180249 (Non-premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17378997 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17400813 (Non-premium) 6 days ago.

http://www.tf2outpost.com/trade/17001522 (Non-premium) 3 weeks ago. Offered 1 key but didn't take it.

http://www.tf2outpost.com/trade/17364608 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17198602 (Non-premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17302874 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17196181 (Non-premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17169831 (Non-premium) 2 weeks ago.

Selling @1.4 keys(Young)

http://www.tf2outpost.com/trade/17549827

http://www.tf2outpost.com/trade/17545746

http://bazaar.tf/trade/660182 (1.4 keys and above)

http://www.tf2outpost.com/trade/17544312

http://www.tf2outpost.com/trade/17542320

http://www.tf2outpost.com/trade/17535728

http://www.tf2outpost.com/trade/17532612

Unsold @ 1.5 keys

http://www.tf2outpost.com/trade/17155275 (non-premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17269286 (Non-premium) 1 weeek ago.

http://www.tf2outpost.com/trade/17281621 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17478137 (Non-premium) 3 days ago.

http://www.tf2outpost.com/trade/17424150 (Non-premium) 5 days ago.

http://www.tf2outpost.com/trade/17306146 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17399713 (Non-premium) 6 days ago.

Sold @ 1.5 keys

http://www.tf2outpost.com/trade/17372252 (Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17451742 (Premium) 4 days ago.

http://www.tf2outpost.com/trade/17529759 (Premium)

Selling @1.5 keys (Young)

http://www.tf2outpost.com/trade/17550596

http://www.tf2outpost.com/trade/17549972

http://www.tf2outpost.com/trade/17539925

Unsold @1.6 keys

http://www.tf2outpost.com/trade/17498405(Non-premium) 2 days ago.

http://www.tf2outpost.com/trade/17144621(Non-premium) 2 weeks ago.

http://www.tf2outpost.com/trade/17233324(Non-premium) 1 week ago.

http://www.tf2outpost.com/trade/17211567 (Premium) 1 week ago.

http://www.tf2outpost.com/trade/17471667 (Non-premium) 3 days ago.

http://www.tf2outpost.com/trade/17346637 (Non-premium) 1 week ago.

http://backpack.tf/classifieds/search/id/52d1ce944cd7b8db1f8b4567

Looking at backpack.tf, the prices on the first page, they are mainly 1.4 keys and 1.5 keys. Only 3 1.6 keys on the second page

There are many listings for 1.3- 1.5 keys with minority for 1.6 keys. Most of the listings for 1.6 keys are not sold. So the range is set at 1.3 keys - 1.5 keys.