Item 1

https://backpack.tf/item/11731507224

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198890990852#!/compare/1689379200/1689724800

Buyer: https://backpack.tf/profiles/76561199161916038#!/compare/1689292800/1689724800

Item 2

https://backpack.tf/item/11568244213

Sale #2

Bulk?-

Seller: https://backpack.tf/profiles/76561198231040628#!/compare/1686441600/1686528000

Buyer: https://backpack.tf/profiles/76561198104056646#!/compare/1686441600/1686528000

Sale #3

Untraceable? Seem to have sold for Green Energy Airdog but this seems incomplete-

Seller: https://backpack.tf/profiles/76561198104056646#!/compare/1686441600/1686528000

Buyer: https://backpack.tf/profiles/76561198150294682#!/compare/1686355200/1686528000

Sale #4

Bulk sale-

Seller: https://backpack.tf/profiles/76561198150294682#!/compare/1686355200/1686528000

Buyer: https://backpack.tf/profiles/76561198311498888#!/compare/1686441600/1686528000

Sale #5

Untraceable-

Seller: https://backpack.tf/profiles/76561198311498888#!/compare/1690675200/1690761600

Buyer: https://backpack.tf/profiles/76561198867130576#!/compare/1690848000/1691107200

Item 3

https://backpack.tf/item/11249661553

Sale #6

Sold for 6 keys (bot dump)-

Seller: https://backpack.tf/profiles/76561198123378599#!/compare/1685750400/1685923200

Buyer: https://backpack.tf/profiles/76561198453530349#!/compare/1685664000/1685750400

Sale #7

Untraceable-

Seller: https://backpack.tf/profiles/76561198453530349#!/compare/1689638400/1689724800

Buyer: https://backpack.tf/profiles/76561199161916038#!/compare/1689292800/1689724800

Sale #8

Untraceable-

Seller: https://backpack.tf/profiles/76561199161916038#!/compare/1689724800/1689811200

Buyer: https://backpack.tf/profiles/76561198057081171#!/compare/1654819200/1689897600

Item 4

https://backpack.tf/item/10518758313

Sale #9

Bulk transfer-

Seller: https://backpack.tf/profiles/76561199103818277#!/compare/1686700800/1686787200

Buyer: https://backpack.tf/profiles/76561198006544512#!/compare/1686700800/1686787200

Item 5

https://backpack.tf/item/3682923525

Sale #10

Bulk sale-

Seller: https://backpack.tf/profiles/76561198135388328#!/compare/1690156800/1690243200

Buyer: https://backpack.tf/profiles/76561198209389815#!/compare/1678233600/1690416000

Item 6

https://backpack.tf/item/3298111466

Seems gambled at first and then just transfered back and forward between two accounts, not worth checking

Item 7

https://backpack.tf/item/3291065919

Sale #11

Untraceable-

Seller: https://backpack.tf/profiles/76561198176614359#!/compare/1686009600/1686182400

Buyer: https://backpack.tf/profiles/76561199026390261#!/compare/1686182400/1686268800

Item 8

https://backpack.tf/item/12847408002

Sale #12

Untraceable-

Seller: https://backpack.tf/profiles/76561199134899608#!/compare/1687132800/1687996800

Buyer: https://backpack.tf/profiles/76561198135388328#!/compare/1687046400/1687132800

Sale #13

Sold for 7 keys-

Seller: https://backpack.tf/profiles/76561198135388328#!/compare/1687651200/1687737600

Buyer: https://backpack.tf/profiles/76561199061278212#!/compare/1687392000/1688428800

Sale #14

Sold with a High Five! for a Mirthful Mistletoe Reindoonibeanie (using this sale to price the Reindoonibeanie)-

Seller: https://backpack.tf/profiles/76561199061278212#!/compare/1688860800/1690675200

Buyer: https://backpack.tf/profiles/76561199120469843#!/compare/1687478400/1690329600

Sale #15

Sold for a Midnight Whirlwind Taunt: Scotsmann's Stagger + 0.55 refined (bot dump, wouldn't use here plus it seems a bit on the low end)-

Seller: https://backpack.tf/profiles/76561199120469843#!/compare/1690329600/1691366400

Buyer: https://backpack.tf/profiles/76561199111073161#!/compare/1690588800/1690675200

Marketplace.tf Sales

https://marketplace.tf/items/tf2/30570;5;u3006

MP.TF Sale #1

Sold for $17.99 on June 11, 2023

Keys @1.98

17.99/1.98 = 9.09ish keys

MP.TF Sale #2

Sold for $17.99 on August 3, 2023

Keys @ $1.95

17.99/1.95 = 9.23ish keys

Sales @ 6, 7, 9.09, 9.23

Should be fine to take 7-9 here