Sale 1:

Sold with Dead of Night (>0.5) for Terror-Watt Cloud Crasher (18)

No outpost

Seller: https://backpack.tf/profiles/76561198060144325#!/compare/1499990400/1500249600

Buyer: https://backpack.tf/profiles/76561198147243794#!/compare/1500076800/1500163200

X = 17

Sale 2: – Credit to Sam P45

Sold for 16 keys

http://webcache.googleusercontent.com/search?q=cache:D1fVR88ClncJ:www.tf2outpost.com/trade/28908302+&cd=1&hl=en&ct=clnk&gl=au – B/O of 16

Seller: https://backpack.tf/profiles/76561198023542389#!/compare/1494547200/1494633600

Buyer: https://backpack.tf/profiles/76561198254180938#!/compare/1494547200/1494633600

http://imgur.com/a/w9mDv

http://imgur.com/a/O37iv

Big thanks to Sam for providing the screenshots!

X = 16

Sale 3:

Sold for Green Confetti Private Eye (15)

http://www.tf2outpost.com/trade/28884695 - No visible B/O

Seller: https://backpack.tf/profiles/76561198164651434#!/compare/1493251200/1493337600

Buyer: https://backpack.tf/profiles/76561198251648090#!/compare/1493251200/1493337600

X = 15

Sale 4:

Sold for 12 keys

http://www.tf2outpost.com/trade/28901388 - B/O of 12, took about a month to sell

Seller: https://backpack.tf/profiles/76561198058818262#!/compare/1493510400/1494547200

Buyer: https://backpack.tf/profiles/76561198060144325#!/compare/1494460800/1494547200

X = 12

Sellers:

13 keys:

http://i.imgur.com/t1RB8nE.png - young

~14.4 keys:

http://i.imgur.com/m7Yz3M7.jpg - 6 days

Sales at:

12

15

16

17

Going to exclude the sale at 17, as the B/O was most likely lower, and I’d rather have the high-end set with a pure sale, with the sellers and sales for much lower here.

Going with 12-16.