Item 1

https://backpack.tf/item/12896985597

Sale 1

https://backpack.tf/profiles/76561198075823568#!/compare/1681344000/1685491200

https://backpack.tf/profiles/76561198287940798#!/compare/1681862400/1681948800

No clue

Sale 2

https://backpack.tf/profiles/76561198287940798#!/compare/1681948800/1682035200

https://backpack.tf/profiles/76561198146515714#!/compare/1682467200/1684108800

Untrace on buyer side, looks like 46 keys tho

Sale 3

https://backpack.tf/profiles/76561198146515714#!/compare/1684108800/1684368000

https://backpack.tf/profiles/76561198057412106#!/compare/1683936000/1684108800

Looks like a bulk upgrade for an aussie RL, kinda hard to value with painted cosmetics and killstreak kits, rather go with pure sales

Sale 4

https://backpack.tf/profiles/76561198057412106#!/compare/1684195200/1684281600

https://backpack.tf/profiles/76561198120747050#!/compare/1683849600/1684281600

Bulk for a Sunbeams Hustler's Hallmark

Sale 5

https://backpack.tf/profiles/76561198120747050#!/compare/1683849600/1684281600

https://backpack.tf/profiles/76561198453530349#!/compare/1684195200/1684281600

Likely ~50 keys

Item 2

https://backpack.tf/item/12974571798

Sale 6

https://backpack.tf/profiles/76561198065808232#!/compare/1683417600/1683763200

https://backpack.tf/profiles/76561199245733895#!/compare/1683504000/1683590400

No clue

Ignoring tradeback...

Sale 7

https://backpack.tf/profiles/76561199245733895#!/compare/1684368000/1684454400

https://backpack.tf/profiles/76561199116198115#!/compare/1684368000/1684454400

No clue

Sale 8

https://backpack.tf/profiles/76561199116198115#!/compare/1684540800/1684627200

https://backpack.tf/profiles/76561198337734785#!/compare/1684627200/1684713600

No clue

Item 3

https://backpack.tf/item/12817975608

Ignoring gambling...

Sale 9

https://backpack.tf/profiles/76561199446578917#!/compare/1681257600/1681689600

https://backpack.tf/profiles/76561198850121720#!/compare/1682121600/1682208000

No clue

Item 4

https://backpack.tf/item/12328735922

Ignoring scammer trades...

Sale 10

https://backpack.tf/profiles/76561199104457222#!/compare/1683676800/1683763200

https://backpack.tf/profiles/76561199072654974#!/compare/1683590400/1683676800

Untrace on seller side?

Mp.tf

https://marketplace.tf/items/tf2/30362;5;u15

$139.99 / $2.03 = ~69 keys

Total Sales

46, 50, 69

https://imgur.com/a/W6lI4r0

69 seems high given current sellers

Taking 46 - 50 keys c: