Item 1

https://backpack.tf/item/8203698705

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198275478002#!/compare/1687046400/1687132800

Buyer: https://backpack.tf/profiles/76561199208057960#!/compare/1677283200/1689897600

Marketplace.tf Sales

https://marketplace.tf/items/tf2/1110;5;u3030

MP.TF Sale #1

Sold for $29.99 on July 2, 2023

Keys @ $1.96

29.99/1.96 = 15.30ish keys

MP.TF Sale #2

Sold for $29.99 on July 6, 2023

Keys @ $1.99

29.99/1.99 = 15.07ish keys

MP.TF Sale #3

Sold for $24.99 on July 26, 2023

Keys @ $1.95

24.99/1.95 = 12.82ish keys

MP.TF Sale #4

Sold for $29.99 on July 31, 2023

Keys @ $1.95

29.99/1.95 = 15.38ish keys

Sales @ 13, 15, 15, 15

Taking 13-15 here