Resuggesting, thank you Offline for pointing out the buyer!

Unpriced.

Taking last 2 months.

Marketplace

https://marketplace.tf/items/tf2/30816;5;u3021

Sold for 24.74 on May 1 (24.74/1.85 = 13.37 rounding to 13 keys)

Sold for 16.06 on May 15 (16.06/1.91 = 8.41 rounding to 8.5 keys)

Sold for 24.7 on June 19 (24.7/1.98 = 12.47 rounding to 12 keys)

Sold for 24.7 on June 29 (24.7/2.01 = 12.29 rounding to 12 keys)

https://backpack.tf/item/5984456581

https://backpack.tf/item/5343194905

Sold with 9 refined for 10 keys

https://backpack.tf/profiles/76561198305676157#!/compare/1591747200/1591920000

https://backpack.tf/profiles/76561198000426108#!/compare/1591833600/1592265600

Rounds to 10 keys

Buyout was 9 keys + 45 refined

https://bot.tf/stats/listings/4R05JEDE

Current Classifieds:

https://gyazo.com/2e898d10a3967ebcf1eb15a896d6c56b

Seller at 10 keys for 3 months, excluding 13.

Current Buyers on MPTF:

https://gyazo.com/634f82cc9a38b97e1f6b95bc7ecc94f7

Buyer at 17.02, which is higher than the sale at 8.5 keys. Excluding 8.5

1 @ 8.5 keys

1 @ 10 keys

2 @ 12 keys

1 @ 13 keys

12 seems common here, not going to exclude due to only 1 seller at 10.

Taking 10-12 keys here.