Item: https://backpack.tf/item/1765887666

Sale #1

https://backpack.tf/profiles/76561198140584551#!/compare/1602979200/1603065600

https://backpack.tf/profiles/76561198375673085#!/compare/1602892800/1603065600

Sold for Searing Plasma L'homme(active suggestion for 21 Keys) + 1 key

https://ibb.co/MGtbNkj

https://ibb.co/7y8Q5MW

Sold for 22 Keys

Sale #2

https://backpack.tf/profiles/76561198375673085#!/compare/1603065600/1603238400

https://backpack.tf/profiles/76561198839179532#!/compare/1602979200/1603152000

Untraceable

Sale #3

https://backpack.tf/profiles/76561198839179532#!/compare/1603152000/1603238400

https://backpack.tf/profiles/76561198220130891#!/compare/1603065600/1603152000

Untraceable

Sale #4

https://backpack.tf/profiles/76561198220130891#!/compare/1603152000/1603238400

https://backpack.tf/profiles/76561198135388328#!/compare/1603152000/1603238400

Untraceable

Sale #5

https://backpack.tf/profiles/76561198132699658#!/compare/1602979200/1603238400

https://backpack.tf/profiles/76561198135388328#!/compare/1603238400/1603324800

Sold for 10 Keys and 0.66 ref(rounding to 10 keys), excluding

ID: 9382070673 match

Sale #6

https://backpack.tf/profiles/76561198132699658#!/compare/1603238400/1603324800

https://backpack.tf/profiles/76561198135388328#!/compare/1603238400/1603324800

Quick resale for 10 Keys again, excluding

ID: 9382070673 match

Sale #7

https://backpack.tf/profiles/76561198135388328#!/compare/1603324800/1603411200

https://backpack.tf/profiles/76561198025083656#!/compare/1603238400/1603411200

Sold for 13 Keys

ID: 9386379212 match

Summary

Sales at

10 Keys

10 Keys

13 Keys

22 Keys

Conclusion

Going with 13-22 keys here as the other sales are lower. STN pays 10 Keys for quicksell and scrap buys/sells for 10/13 Keys.