https://backpack.tf/item/7272007571

Untraceable

https://backpack.tf/profiles/76561198117126947#!/compare/1599696000/1602979200

https://backpack.tf/profiles/76561198179707937#!/compare/1602892800/1602979200

20 keys 19 ref ~20 keys (sold to Tradeit.gg)

https://backpack.tf/profiles/76561198179707937#!/compare/1606867200/1606953600

https://backpack.tf/profiles/76561198298504614#!/compare/1606003200/1606953600

Marketplace.tf sales: https://marketplace.tf/items/tf2/167;5;u3019

(UNTRACEABLE) September 22: $42.50/1.87=22.73 ~23 keys

no buyout https://bot.tf/stats/listings/4KVX99XX

https://backpack.tf/item/7299252026 September 27: $49.99/1.87=26.73 ~27 keys

no buyout https://bot.tf/stats/listings/MG59KKQZ

Excluding 20 keys because it's around the buy order price and it was dumped to Tradeit.gg

Excluding 27 because there's a seller at 25 who has been listed for 3 months https://backpack.tf/item/1487312678

Going 23 for now