Sale 1:

Sold for 15 keys

Seller: https://backpack.tf/profiles/76561198002757046#!/compare/1543363200/1543449600

Buyer: https://backpack.tf/profiles/76561197993834789#!/compare/1543363200/1543449600

https://backpack.tf/item/7059220980

46 keys appear with near ID on the seller’s end, but only the first 15 match.

X = 15

Sale 2:

Sold for 14 keys + ~1 key in metal/items

Seller: https://backpack.tf/profiles/76561197969935601#!/compare/1544659200/1544745600

Buyer: https://backpack.tf/profiles/76561198355045953#!/compare/1544659200/1544745600

https://backpack.tf/item/7059220980

X = 15

Sale 3:

Sold with cosmetic for Orbiting Fire Private Eye (13.5) + 1 key

Seller: https://backpack.tf/profiles/76561198355045953#!/compare/1544659200/1544745600

Buyer: https://backpack.tf/profiles/76561198072355915#!/compare/1544572800/1544745600

https://backpack.tf/item/7059220980

X = 14

Sale 4:

Sold for Hellish Inferno Bucking Bronco + 2 keys

Seller: https://backpack.tf/profiles/76561198309926203#!/compare/1546041600/1546128000

Buyer: https://backpack.tf/profiles/76561198841912826#!/compare/1546041600/1546128000

https://backpack.tf/item/7059220980

May be better to use on the taunt.

Sale 5:

Sold for Circling TF Logo Engineer’s Cap

Seller: https://backpack.tf/profiles/76561198841912826#!/compare/1546041600/1546128000

Buyer: https://backpack.tf/profiles/76561198243238038#!/compare/1546041600/1546128000

https://backpack.tf/item/7059220980

Might be better to use on the Logo hat, given the item’s ancient price, the amount of sales we already have here, and the 3-week old seller at 16 on the cap.

Sale 6:

Sold with 2 keys for spelled items

Seller: https://backpack.tf/profiles/76561197993834789#!/compare/1543708800/1543795200

Buyer: https://backpack.tf/profiles/76561197969935601#!/compare/1543536000/1543708800

https://backpack.tf/item/7059220980

no

Sale 7:

Untraceable

Seller: https://backpack.tf/profiles/76561198069047065#!/compare/1540512000/1541030400

Buyer: https://backpack.tf/profiles/76561198002757046#!/compare/1540512000/1540598400

https://backpack.tf/item/7059220980

Sale 8:

Bulk for Strange Neutron Star Human Cannonball

Seller: https://backpack.tf/profiles/76561198072355915#!/compare/1544745600/1544832000

Buyer: https://backpack.tf/profiles/76561198309926203#!/compare/1544745600/1544832000

https://backpack.tf/item/7059220980

Sellers:

https://i.imgur.com/m5O5Dqd.png

https://backpack.tf/item/7059220980 - 18 keys

https://backpack.tf/item/3996333131 - 19 keys

Sales at:

14

15 (2x)

Going with 14-15.