Sale 1:

Sold for $88.88 on marketplace

https://marketplace.tf/items/30425;5;u30

https://manic.tf/keyprice/?at=2018-10-06 - $88.88 / $1.81 = 49.10 keys

X = 49

Sale 2:

Sold for 40 keys

Seller: https://backpack.tf/profiles/76561198337734785#!/compare/1544572800/1544659200

Buyer: https://backpack.tf/profiles/76561198050518375#!/compare/1544572800/1544659200

https://backpack.tf/item/7206505103

The item was dumped on a swap bot before being scanned in the buyer’s backpack.

X = 40

Sale :3

Untraceable

Seller: https://backpack.tf/profiles/76561198335791307#!/compare/1544572800/1544659200

Buyer: https://backpack.tf/profiles/76561198050518375#!/compare/1544572800/1544659200

https://backpack.tf/item/6849866048

https://i.imgur.com/1TYxqHR.png - labelled as 40 keys

Same situation as the last

Sale 4:

Untraceable

Seller: https://backpack.tf/profiles/76561198312583107#!/compare/1544832000/1544918400

Buyer: https://backpack.tf/profiles/76561198050518375#!/compare/1544832000/1544918400

https://backpack.tf/item/6826676829

https://i.imgur.com/1TYxqHR.png - labelled as 40 keys

Same situation as the last two

Sale 5:

Untraceable

Seller: https://backpack.tf/profiles/76561198312583107#!/compare/1544918400/1545004800

Buyer: https://backpack.tf/profiles/76561198819564432#!/compare/1544918400/1545004800

https://backpack.tf/item/3515777581

https://i.imgur.com/1TYxqHR.png - Labelled as 40 keys, only 9 keys match.

Sale 6:

Untraceable

Seller: https://backpack.tf/profiles/76561198314160142#!/compare/1540425600/1540684800

Buyer: https://backpack.tf/profiles/76561198312583107#!/compare/1540339200/1540425600

https://backpack.tf/item/3515777581

https://i.imgur.com/1TYxqHR.png - Labelled as 33 keys + 4 ref

Sale 7:

Untraceable

Seller: https://backpack.tf/profiles/76561198063251819#!/compare/1540339200/1546300800

Buyer: https://backpack.tf/profiles/76561198337734785#!/compare/1540425600/1540512000

https://backpack.tf/item/7206505103

Sale 8:

Untraceable

Seller: https://backpack.tf/profiles/76561198104147036#!/compare/1542153600/1545868800

Buyer: https://backpack.tf/profiles/76561198107697353#!/compare/1545609600/1545868800

https://backpack.tf/item/5395106639

Sale 9:

Untraceable

Seller: https://backpack.tf/profiles/76561198018719204#!/compare/1538784000/1538870400

Buyer: https://backpack.tf/profiles/76561198335791307#!/compare/1538784000/1538870400

https://backpack.tf/item/6849866048

https://i.imgur.com/1TYxqHR.png - labelled as 33 keys

Sale 10:

Backpack purchase

Seller: https://backpack.tf/profiles/76561198101300189#!/compare/1538956800/1539216000

Buyer: https://backpack.tf/profiles/76561198017901187#!/compare/1538870400/1539216000

https://backpack.tf/item/6687885995

Sale 11:

Sold for Strange Blizzardy Storm Wing Mann + Terror-Watt Wing Mann + Kill-a-Watt Wing Mann

Seller: https://backpack.tf/profiles/76561198107829703#!/compare/1538438400/1540166400

Buyer: https://backpack.tf/profiles/76561198314160142#!/compare/1540166400/1540252800

https://backpack.tf/item/3515777581

Kill-a-Watt and Blizzardy Storm have no recent sales. However, I doubt they’d end up affecting the price even if they did. Excluding this sale.

Sellers:

https://i.imgur.com/NI0XbJF.png

https://backpack.tf/item/2741374726 - 57 keys

https://backpack.tf/item/3367605358 - 65 keys

https://backpack.tf/item/5395106639 - 65 keys

Sales at:

40

49

Going with 40-49.