Item 1

https://backpack.tf/item/6459623633

Sale 1

https://backpack.tf/profiles/76561198417574550#!/compare/1697155200/1697241600

https://backpack.tf/profiles/76561198310972287#!/compare/1697155200/1697241600

Bulk for a Cool Professional Killstreak Jazzy Crusader's Crossbow (Minimal Wear)

Sale 2

https://backpack.tf/profiles/76561198310972287#!/compare/1697414400/1697500800

https://backpack.tf/profiles/76561198407997130#!/compare/1697500800/1697587200

Bulk for a Spellbound Modest Metal Pile of Scrap

Sale 3

https://backpack.tf/profiles/76561198407997130#!/compare/1698624000/1698710400

https://backpack.tf/profiles/76561198145331385#!/compare/1700438400/1700524800

No clue, looks like a missing history but it was bulk for a Strange Scorching Flames Pithy Professional?

Sale 4

https://backpack.tf/profiles/76561198145331385#!/compare/1700438400/1700524800

https://backpack.tf/profiles/76561198056898423#!/compare/1702425600/1702512000

https://backpack.tf/item/market_redir/Decorated%20Weapon/Killstreak%20Jazzy%20%7C%20Stickybomb%20Launcher%20(Factory%20New)/Tradable/Craftable

https://steamcommunity.com/market/pricehistory/?appid=440&market_hash_name=Killstreak%20Jazzy%20Stickybomb%20Launcher%20(Factory%20New)

$50.02 / $2.32 = ~22 keys (Dec 14)

Total Sales

22

https://imgur.com/a/GxXe87S

Taking 22 keys c: