Done by TheProcave, posted with permission.

Cloud 9 Katyusha - Micro for P.Fetti Scotch Bonnet

Mptf sale

https://marketplace.tf/items/tf2/30094;5;u58

https://backpack.tf/item/7957051971

Sold for 15.99$ on the 17th of October

$15.99 / $1.82 = 8.79 keys, rounding off to 9 keys.

Sale 1

https://backpack.tf/profiles/76561198268232003#!/compare/1575504000/1575590400

https://backpack.tf/profiles/76561198817510262#!/compare/1575504000/1575590400

Sold for 6 keys and 7 ref, rounding to 6 keys.

Sale 2

https://backpack.tf/profiles/76561198817510262#!/compare/1576022400/1576195200

https://backpack.tf/profiles/76561198000091310#!/compare/1576022400/1576195200

Exchange

Sale 3

https://backpack.tf/profiles/76561198293532003#!/compare/1570665600/1572652800

https://backpack.tf/profiles/76561198280573588#!/compare/1570320000/1570752000

????

Sale 4

https://backpack.tf/profiles/76561198280573588#!/compare/1571270400/1571702400

https://backpack.tf/profiles/76561198377165880#!/compare/1571270400/1571356800

????

Sale 5

https://backpack.tf/profiles/76561198817510262#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198118580639#!/compare/1570752000/1570838400

Nothing matches.

Sale 6

https://backpack.tf/profiles/76561198118580639#!/compare/1570752000/1570838400

https://backpack.tf/profiles/76561198210978641#!/compare/1570492800/1570924800

Seems like a 1:1 for a Steaming Gentleman's Gatsby (9.5 keys, 5 months outdated)

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Micro for Steaming Gentleman's Gatsby

https://backpack.tf/suggestion/5e04df1b38b2bf44b43d4366

Taking the price of the Steaming Gentleman's Gatsby as 8.25 keys.

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Rounding the sale to 8.5 keys.

Sale 7

https://backpack.tf/profiles/76561198210978641#!/compare/1570924800/1571011200

https://backpack.tf/profiles/76561198800565591#!/compare/1570924800/1571011200

1:1 for a Purple Confetti Scotch Bonnet. Using on the Scotch Bonnet.

Sale 8

https://backpack.tf/profiles/76561198800565591#!/compare/1571443200/1571529600

https://backpack.tf/profiles/76561198349328696#!/compare/1571443200/1571529600

????

Sale 9

https://backpack.tf/profiles/76561198349328696#!/compare/1571616000/1572048000

https://backpack.tf/profiles/76561198437488962#!/compare/1571875200/1571961600

1:1 for an Eerie Lightning The Russian Arms Race.

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Micro for Eerie Lightning The Russian Arms Race

https://backpack.tf/suggestion/5e04ee8a2995be68665b2900

Taking the price of the Eerie Lightning The Russian Arms Race as 5.5 keys.

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Sale 10

https://backpack.tf/profiles/76561198106178969#!/compare/1574812800/1575072000

https://backpack.tf/profiles/76561198814305396#!/compare/1575072000/1575158400

Involved in a semi-bulk sale.

Sales are at:

5.5 (low)

6 (low)

8.5

9

Taking the range as 8.5 - 9 keys!