Sale #1

https://marketplace.tf/items/tf2/30863;5;u6

https://backpack.tf/item/6196111800

Marketplace.tf sale on 6/06/25

$39.99 / $1.93 (median value at the time) = 20.7

Rounding to 21

Sale #2

https://backpack.tf/item/9716873212

17 keys

Seller: https://backpack.tf/profiles/76561198382376293#!/compare/1744070400/1744675200 (ID: 15623380227)

Buyer: https://backpack.tf/profiles/76561198075159344#!/compare/1743897600/1744156800

Sale #3

https://backpack.tf/item/7883903017

16 keys 5 ref

Seller: https://backpack.tf/profiles/76561199564942025#!/compare/1744934400/1745020800 (ID: 15655249217)

Buyer: https://backpack.tf/profiles/76561198010234212#!/compare/1743552000/1745020800

Rounding to 16

Sale #4

https://backpack.tf/item/7883903017

Untraceable

https://backpack.tf/profiles/76561198010234212#!/compare/1745539200/1745625600

Sale #5

https://backpack.tf/item/7883903017

Bulk for a Steaming Exquisite Rack

https://backpack.tf/profiles/76561198093500970#!/compare/1742774400/1750032000

Using there

Sale #6

https://backpack.tf/item/6196111800

34 keys 0.55 ref

Seller: https://backpack.tf/profiles/76561199125558710#!/compare/1750723200/1750809600 (ID: 15868219104)

Buyer: https://backpack.tf/profiles/76561199111073161#!/compare/1750723200/1750809600

Rounding to 34

Probably missing info

Sale #7

https://backpack.tf/item/6024189373

17 keys 0.55 ref

Seller: https://backpack.tf/profiles/76561199581722058#!/compare/1749513600/1749600000 (ID: 15826725853)

Buyer: https://backpack.tf/profiles/76561198161980756#!/compare/1749513600/1749600000

Rounding to 17

Sale #8

https://backpack.tf/item/6024189373

Untraceable, keys reused too quickly

https://backpack.tf/profiles/76561198161980756#!/compare/1749945600/1750032000

Sale #9

https://backpack.tf/item/6005543042

Bulk for an Aussie Stickybomb Launcher

https://backpack.tf/profiles/76561198036068400#!/compare/1748908800/1749340800

Not bothering, since this is like 20 keys overpay

Sale #10

https://backpack.tf/item/6005543042

Untraceable

https://backpack.tf/profiles/76561199127409503#!/compare/1749340800/1749427200

Current sellers:

$39.99 on mp.tf (3x)

19 keys on bp.tf

19.52 keys on bp.tf

Sales: 21, 17, 16, 34, 17

Several unsolds below 21 keys, not using that.

Final price: 16 - 17