Sale 1:

Sold for Terror-Watt Triboniophorus Tyrannus (12.5) + 6 keys + ~0.5 keys in metal/items

http://www.tf2outpost.com/trade/29267113 - B/O of 20

Seller: https://backpack.tf/profiles/76561198103695073#!/compare/1499472000/1499558400

Buyer: https://backpack.tf/profiles/76561198199477450#!/compare/1499558400/1499644800

X = 19

Bombing Run doesn’t appear in either link because it sold too quick:

https://backpack.tf/item/1652339097

Sale 2:

Sold for 16 keys

No outpost

Seller: https://backpack.tf/profiles/76561198048851745#!/compare/1496793600/1496880000

Buyer: https://backpack.tf/profiles/76561198079082551#!/compare/1496793600/1496880000

X = 16

Sale 3:

Sold for Strange Circling Peace Sign Airdog (18) + ~1 key in items

http://www.tf2outpost.com/trade/29233367 - B/O of 17

Seller: https://backpack.tf/profiles/76561198079082551#!/compare/1498003200/1498176000

Buyer: https://backpack.tf/profiles/76561198081504874#!/compare/1496620800/1498176000

Was used on the Airdog, can’t be used here.

Sale 4:

Sold for Purple Confetti Ol’ Snaggletooth + <0.5 keys in items

No outpost

Seller: https://backpack.tf/profiles/76561198168259682#!/compare/1499472000/1499558400

Buyer: https://backpack.tf/profiles/76561198123576365#!/compare/1499472000/1499558400

Can be used on the Snaggle.

Sale 5:

Sold for Bubbling Blast Defense

Seller: https://backpack.tf/profiles/76561198199477450#!/compare/1499558400/1499644800

Buyer: https://backpack.tf/profiles/76561198288029145#!/compare/1499558400/1499644800

Can be used on the Blast Defense.

Sale 6:

Bulk for Beams Whoopee

Seller: https://backpack.tf/profiles/76561198288029145#!/compare/1499990400/1500076800

Buyer: https://backpack.tf/profiles/76561197962488873#!/compare/1499990400/1500076800

Sale 7:

Bulk for Insomnia Crones

Seller: https://backpack.tf/profiles/76561197962488873#!/compare/1502323200/1502409600

Buyer: https://backpack.tf/profiles/76561198211445756#!/compare/1502323200/1502409600

Sellers:

22 keys:

http://i.imgur.com/MF6OXdJ.png - 6 days

Sales at:

16

19

Going with 16-19.