Classifieds as of the post of this suggestion:

x1 at 1.25 Keys. ( http://i.imgur.com/YMPmOjh.png )

x9 at 1.4 Keys(1.37). ( http://i.imgur.com/Aay3b7d.png )

x22 at 1.5 Keys. ( http://i.imgur.com/l38KNqt.png - http://i.imgur.com/0w83eQF.png - http://i.imgur.com/56aKqYx.png )

x6 at 1.6 Keys. ( http://i.imgur.com/3u0HdAF.png )

1 Key and 2 Refined: 1.25 Keys.

1 Key and 3 Refined: 1.4 Keys (1.37, rounds to 1.4)

1 Key and 4 Refined: 1.5 Keys.(1.49, rounds to 1.5)

1 Key and 5 Refined: 1.6 Keys.(1.61, rounds to 1.6)

1 Key and 5.77 Refined: 1.7 Keys.

Sellers below 1.7 Keys:

http://www.tf2outpost.com/trade/20000121 - 1:3 for 3 ToD Tickets.

http://www.tf2outpost.com/trade/19854352 - 1 Key and 2 Refined.

http://www.tf2outpost.com/trade/20021692 - 1 Key and 2.66 Refined.

http://www.tf2outpost.com/trade/20012579 - 1 Key and 2.66 Refined.

http://www.tf2outpost.com/trade/20021360 - 1:1 for S. Minigun.

http://www.tf2outpost.com/trade/20016482 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20024973 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19942428 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19972436 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20022928 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20011948 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19930683 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19927186 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20002874 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20020317 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19437587 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19995631 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19930536 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/20002332 - 1 Key and 3 Refined.

http://www.tf2outpost.com/trade/19925001 - 1 Key and 3.33 Refined.

http://www.tf2outpost.com/trade/19905139 - 1 Key and 3.66 Refined.

http://www.tf2outpost.com/trade/19955929 - 1 Key and 3.66 Refined.

http://www.tf2outpost.com/trade/20012278 - 1 Key and 3.88 Refined - Mass seller.

http://www.tf2outpost.com/trade/19963808 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19936612 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19940559 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20015038 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19776897 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19945830 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19754431 - 1 Key and 4 Refined - Mass seller.

http://www.tf2outpost.com/trade/20013950 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20018096 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20001165 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19998733 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19862937 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20024438 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19968388 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19996771 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19550554 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20018642 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20013043 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20022670 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19862986 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19853590 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19988560 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19955314 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20000237 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19998324 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20002688 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19982546 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/20018648 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/6618590 - 1 Key and 4 Refined.

http://www.tf2outpost.com/trade/19989817 - 1 Key and 4.44 Refined.

http://www.tf2outpost.com/trade/19836532 - 1 Key and 4.55 Refined.

http://www.tf2outpost.com/trade/19945521 - 1 Key and 4.66 Refined.

http://www.tf2outpost.com/trade/19958908 - 1 Key and 4.66 Refined.

http://www.tf2outpost.com/trade/19985486 - 1 Key and 4.66 Refined.

http://www.tf2outpost.com/trade/19949752 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19906013 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/20003908 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19988405 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19653163 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19633527 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/20005811 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19995800 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19914174 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/18943634 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19861651 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/20003898 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19946564 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/20016578 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19967681 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19980903 - 1 Key and 5 Refined.

http://www.tf2outpost.com/trade/19712895 - 1 Key and 5.22 Refined.

http://www.tf2outpost.com/trade/19777517 - 1 Key and 5.33 Refined.

http://www.tf2outpost.com/trade/19860205 - 1 Key and 5.33 Refined.

http://www.tf2outpost.com/trade/19796520 - 1 Key and 5.33 Refined.

http://www.tf2outpost.com/trade/19896900 - 1 Key and 5.33 Refined.

http://www.tf2outpost.com/trade/20019395 - 1.6 Keys.

http://www.tf2outpost.com/trade/19906862 - 1.6 Keys.

http://www.tf2outpost.com/trade/19955257 - 1.66 Keys(?)

Unsolds at 1.7 Keys:

http://www.tf2outpost.com/trade/19988215 - 1 Day old - 1.7 Keys - Autobumper.

http://www.tf2outpost.com/trade/20000319 - 1 Day old - 1.7 Keys.

http://www.tf2outpost.com/trade/19967346 - 2 Days old - 1.7 Keys.

http://www.tf2outpost.com/trade/19985500 - 2 Days old - 1.7 Keys.

http://www.tf2outpost.com/trade/19961946 - 3 Days old - 1.7 Keys - Autobumper.

http://www.tf2outpost.com/trade/19959548 - 3 Days old - 1.7 Keys.

http://www.tf2outpost.com/trade/19946186 - 4 Days old - 1.7 Keys.

http://www.tf2outpost.com/trade/19902938 - 6 Days old - 1.7 Keys.

http://www.tf2outpost.com/trade/19794908 - 1 Week+ old - 1.7 Keys - Autobumper.

http://www.tf2outpost.com/trade/19899189 - 1 Week+ old - 1.7 Keys.

http://www.tf2outpost.com/trade/19766510 - 2 Weeks+ old - 1.7 Keys.

http://www.tf2outpost.com/trade/19941999 - 4 Days old - 1 Key and 5.66 Refined.

http://www.tf2outpost.com/trade/19992203 - 1 Day old - "bp.tf prices".

http://www.tf2outpost.com/trade/20000281 - 1 Day old - "bp.tf prices".

http://www.tf2outpost.com/trade/19954644 - 3 Days old - "bp.tf prices".

http://www.tf2outpost.com/trade/19933051 - 4 Days old - "bp.tf prices" - Autobumper.

http://www.tf2outpost.com/trade/19962444 - 5 Days old - "bp.tf prices".

http://www.tf2outpost.com/trade/19814917 - 1 Week+ old - "bp.tf prices".

http://www.tf2outpost.com/trade/19694668 - 2 Weeks+ old - "bp.tf prices".

http://www.tf2outpost.com/trade/19434168 - 1 Month+ old - "bp.tf prices".

This here is 20 OutPost pages, the rest that I found where either priced 2 Keys+, had no price, where posted under a day ago, priced higher due to Killstreak or only sold in a bundle or set.