Item Snapshot made
Classifieds
1.3 keys
x7
Genuine Noise Maker - Koto 5 Steam Purchase 5425107954 3226924221.35 keys
x14
Genuine Noise Maker - Koto 5 Steam Purchase 11038156519 10361953291.41 keys
x23
Genuine Noise Maker - Koto 5 Steam Purchase 11320607120 3393527041.41 keys
x22
Genuine Noise Maker - Koto 5 Steam Purchase 11162858134 4101899131.41 keys
x7
Genuine Noise Maker - Koto 5 Steam Purchase 11379923005 2880136331.41 keys
x12
Genuine Noise Maker - Koto 5 Traded 11300627440 2658373611.41 keys
x12
Genuine Noise Maker - Koto 5 Traded 10858294987 2662262861.42 keys
x3
Genuine Noise Maker - Koto 5 Steam Purchase 11317717014 27087732921.43 keys
x24
Genuine Noise Maker - Koto 5 Steam Purchase 10809920950 3341881542 keys
x22
Genuine Noise Maker - Koto 5 Steam Purchase 11082526045 3317147591.26 keys
Genuine Noise Maker - Koto1.23 keys
Genuine Noise Maker - Koto1.23 keys
Genuine Noise Maker - Koto1 key
Genuine Noise Maker - Koto1 key
Genuine Noise Maker - Koto
Credits to Blaze:
https://imgur.com/G5U3MhO
https://backpack.tf/item/market_redir/Genuine/Noise%20Maker%20-%20Koto/Tradable/Craftable - new sale at 1.9~ keys
would be better to exclude the sale at 3 given the unsuccessful seller for 7 months at that price and go with scm sale instead
https://marketplace.tf/items/tf2/365;1
https://manic.tf/keyprice/?at=2022-03-13&price=5.2
$5.2 / $1.74 = 2.99 keys
Past 7 days
1 @ 1 key 12.11 ref - can't verify if it has full uses
https://gladiator.tf/sales?item=Genuine%20Noise%20Maker%20-%20Koto&at=2022-03-16T01:14:16.695Z
certainly supports a raise
1.9 as Blaze suggested.