Item 1

https://backpack.tf/item/12627213739

Sale #1

Untraceable-

Seller: https://backpack.tf/profiles/76561198082869766#!/compare/1683504000/1684195200

Buyer: https://backpack.tf/profiles/76561198271493766#!/compare/1683676800/1685232000

Marketplace.tf Sales

https://marketplace.tf/items/tf2/31272;5;u253

MP.TF Sale #1

Sold for $69.95 on April 23, 2023

Keys @ $2.09

69.35/2.09 = 33.18ish keys

MP.TF Sale #2

Sold for $79.99 on May 30, 2023

Keys @ $1.99

79.99/1.99 = 40.20ish keys

MP.TF Sale #3

Sold for $88.88 on June 30, 2023

Keys @ $1.97

88.88/1.97 = 45.12ish keys

MP.TF Sale #4

Sold for $30 on July 15, 2023

Keys @ $1.98

30/1.98 = 15.15ish keys

Sales @ 15, 33, 40, 45

Taking 33-40 here