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Sales

Sale 1: Sold for 13 keys

https://backpack.tf/profiles/76561198192602363#!/compare/1600646400/1600732800

https://backpack.tf/profiles/76561198208922829#!/compare/1600646400/1600732800

Sale 2: Sold with 9 keys for Logo Hermes

https://backpack.tf/profiles/76561198042555325#!/compare/1600646400/1600732800

https://backpack.tf/profiles/76561198192602363#!/compare/1600560000/1600646400

Better used there.

Sale 3: Sold for Aces High Hermes (10 keys)+ 4 keys

https://backpack.tf/profiles/76561198125791160#!/compare/1599782400/1599868800

https://backpack.tf/profiles/76561198042555325#!/compare/1599868800/1599955200

10 + 4 = 14 keys

Marketplace

https://marketplace.tf/items/tf2/633;5;u33

July

2 sold for $23 on July 18 (23/2 = 11.5 rounding to 12 keys)

https://manic.tf/keyprice/?at=2020-07-18

23 on July 23 (23/1.92 = 12~)

https://manic.tf/keyprice/?at=2020-07-23

Classifieds

https://gyazo.com/432d69c423f3b702595a38b55a7aaa37

Summary

Sales at 13 and 14.

Marketplace sales at 12, 12, and 12.

Conclusion

Going with 12-14 here.