Re-suggesting

Using last 2 months, as opposed to 1 month like I did in the last attempt, as the only sale used in that suggestion is now over a month old.

Sale 1:

Sold with 3 keys for Miami Nights Baron Von Havenaplane (17)

No outpost

Seller: https://backpack.tf/profiles/76561198093822339#!/compare/1521331200/1521417600

Buyer: https://backpack.tf/profiles/76561198054275169#!/compare/1521331200/1521417600

X = 14

Sale 2:

Sold for 12 keys (Buyer’s compare link)

Seller: https://backpack.tf/profiles/76561198344933095#!/compare/1520380800/1520467200

Buyer: https://backpack.tf/profiles/76561198115666573#!/compare/1519776000/1520899200

X = 12

Sellers:

~12.35 keys:

https://i.imgur.com/zFwPBPy.png

https://backpack.tf/item/5023669346

18 keys:

https://i.imgur.com/lvn0HpC.png

https://backpack.tf/item/2728847263

https://i.imgur.com/YqijKJ2.png

https://backpack.tf/item/2458983333

20 keys:

https://i.imgur.com/WCNEjdo.png

https://backpack.tf/item/6514018141

35 keys:

https://i.imgur.com/NSbhfm2.png

https://backpack.tf/item/6475811732

Offers:

http://www.tf2outpost.com/trade/29606826

SCM: (Taking keys as $2.47)

https://i.imgur.com/rDCCb5S.png (only the first 3 are relevant)

$31.77 (~12.86 keys)

$33.50 (~13.56 keys)

$39.88 (~16.15 keys)

Sales at:

12

14

Going with 12-14.