Proof: https://steamcommunity.com/market/pricehistory/?country=US&currency=1&appid=440&market_hash_name=Strange%20Grim%20Tweeter

|———Past 30 Days———|

• Jul 23 6AM: $35.90 / $2.35 = 15.3 keys

• Jul 21 2AM: $40.25 / $2.38 = 16.9 keys

• Jul 20 5AM: $32.34 / $2.37 = 13.65 keys

• Jul 11 4PM: $38.00 / $2.40 = 15.85 keys

• Jul 11 11AM: $19.30 / $2.41 = 8 keys

• Jul 3 11AM: $24.33 / $2.29 = 10.6 keys

• Jun 30 1AM: $37.47 / $2.33 = 16.1 keys

Also MP Sales: https://marketplace.tf/items/tf2/30693;11

• $34 / $1.86 = 18.3 keys

Gladiator.tf: https://gladiator.tf/sales?item=Strange%20Grim%20Tweeter&at=2021-07-29T10:10:52.374Z (countered)