Sale 1:

Sold with Spec. KS Rescue Ranger Kit (1) for Steaming Vintage Tyrolean (17) + 4 keys

http://www.tf2outpost.com/trade/28357131 - B/O of 20

Seller: http://backpack.tf/profiles/76561198021055079#!/compare/1469577600/1469664000

Buyer: http://backpack.tf/profiles/76561198229458916#!/compare/1469577600/1469750400

X = 20

Sale 2:

Sold for Smoking Chieftain’s Challenge

No outpost

Seller: http://backpack.tf/profiles/76561198133875209#!/compare/1466812800/1466899200

Buyer: http://backpack.tf/profiles/76561198047739613#!/compare/1466380800/1466899200

X = 19

Sale 3:

Sold for 18 keys

No outpost

Seller: http://backpack.tf/profiles/76561198047706237#!/compare/1467676800/1467936000

Buyer: http://backpack.tf/profiles/76561198178256565#!/compare/1467763200/1467849600

X = 18

Sale 4:

Sold for 9 keys + ~9 keys in items

No outpost

Seller: http://backpack.tf/profiles/76561198068180717#!/compare/1465776000/1465862400

Buyer: http://backpack.tf/profiles/76561198133875209#!/compare/1465776000/1465862400

X = 18

No current sellers

[u]Sales at:[u/]

18 (2x)

19

20

Going with 18-20

I forgot the screenshots for sale 1 lol:

http://puu.sh/qiuPV/420bb6ba4c.png

http://puu.sh/qiuQC/ffc0adc451.jpg

http://puu.sh/qiuRv/4f4320eb7a.jpg