Sale 1:

https://backpack.tf/profiles/76561198086821039#!/compare/1526515200/1526601600

https://backpack.tf/profiles/76561198125791160#!/compare/1526515200/1526601600

Bulk.

Sale 2:

https://backpack.tf/profiles/76561198131633162#!/compare/1523232000/1523318400

https://backpack.tf/profiles/76561198230109280#!/compare/1523232000/1523318400

Sold for 11 keys + 25 ref (Fly Guy was not part of sale)

Sale 3:

https://backpack.tf/profiles/76561198384724011#!/compare/1525651200/1525737600

Untraceable.

Sale 4:

https://backpack.tf/profiles/76561198158419271#!/compare/1525651200/1525737600

Sold for DP Hedge.

Use there.

Sale 5:

https://backpack.tf/profiles/76561198433889628#!/compare/1526169600/1526256000

https://backpack.tf/profiles/76561198218628708#!/compare/1526169600/1526256000

Use there.

Sale 6:

https://backpack.tf/profiles/76561198218628708#!/compare/1526169600/1526256000

https://backpack.tf/profiles/76561198088283800#!/compare/1526169600/1526256000

Sold with 4 keys for DBD Conq

Conq Mini:

https://backpack.tf/profiles/76561198175533443#!/compare/1527120000/1527206400

Sold for 15 keys.

https://backpack.tf/profiles/76561198833152570#!/compare/1527206400/1527292800

Sold for 13 keys + 17 ref

https://backpack.tf/profiles/76561198218628708#!/compare/1526947200/1527206400

Sold for 18 keys.

https://backpack.tf/profiles/76561198302365929#!/compare/1524700800/1524787200

Sold for 14 keys.

Taking 15 - 18 keys. Average of 16.5 keys.

Sale 7:

https://backpack.tf/profiles/76561198088283800#!/compare/1526515200/1526688000

https://backpack.tf/profiles/76561198076488259#!/compare/1526601600/1526688000

Sold for 12 pure.

Sale 8:

https://backpack.tf/profiles/76561198076488259#!/compare/1526601600/1526688000

https://backpack.tf/profiles/76561198317606171#!/compare/1526601600/1526688000

Sold with 4 keys + 27.33 ref for Duped Searing Jeepcap

Jeepcap Mini:

https://backpack.tf/profiles/76561198157452762#!/compare/1527120000/1527206400

Sold for 15 pure + 3 ref

https://backpack.tf/profiles/76561198125380916#!/compare/1527379200/1527465600

Sold for 15 keys + 10 ref

https://backpack.tf/profiles/76561198093420356#!/compare/1526601600/1526688000

Sold for PE Brain Warmer(22.5)

https://backpack.tf/profiles/76561198079540935#!/compare/1526774400/1527120000

Sold for 16 keys + 12.24 ref in sweets.

Taking 23 flat, other sales are QS.

Total is 23 - 5 = 18 keys

http://www.tf2outpost.com/trade/29657216

B/O of 14, Capping.

Sale 9:

https://backpack.tf/profiles/76561198317606171#!/compare/1526947200/1527033600

https://backpack.tf/profiles/76561198076479853#!/compare/1526947200/1527033600

Sold for 13 keys + 17 ref

Sale 10:

https://backpack.tf/profiles/76561198097511639#!/compare/1526688000/1526774400

https://backpack.tf/profiles/76561198349886701#!/compare/1526601600/1526688000

Sold for 10 pure.

Total sales @:

10, 11.91, 12, 13.62, 14, 16.5

https://i.imgur.com/RiEfEJZ.jpg

Sellers around 14, Buyers up to almost 12.

Calling 16.5 and 12 outliers, taking 14 flat.