1 year outdated.

Sold for 8 keys + 29 refined

https://backpack.tf/profiles/76561198011321852#!/compare/1592956800/1593043200

https://backpack.tf/profiles/76561198191779491#!/compare/1592870400/1593043200

Rounds to 8.5 keys

Untrace

https://backpack.tf/profiles/76561198105071091#!/compare/1587945600/1588032000

https://backpack.tf/profiles/76561198417189250#!/compare/1586736000/1588550400

Untrace

https://backpack.tf/profiles/76561198358296372#!/compare/1587427200/1587513600

https://backpack.tf/profiles/76561198105071091#!/compare/1587427200/1587513600

Untrace

https://backpack.tf/profiles/76561198052555868#!/compare/1586908800/1587772800

https://backpack.tf/profiles/76561198358296372#!/compare/1586822400/1586908800

Untrace

https://backpack.tf/profiles/76561198278481498#!/compare/1588636800/1588723200

https://backpack.tf/profiles/76561198000774424#!/compare/1588982400/1591056000

Untrace

https://backpack.tf/profiles/76561198351889134#!/compare/1588204800/1588291200

https://backpack.tf/profiles/76561198278481498#!/compare/1588204800/1588118400

Sold for 8 keys?

https://backpack.tf/profiles/76561198835608254#!/compare/1588118400/1588204800

https://backpack.tf/profiles/76561198351889134#!/compare/1588032000/1588118400

Histories do not match..

Sold for 15.99 on May 6, 2020 (15.99/1.89 = 1.89 = 8.46 rounding to 8.5 keys)

Sold for 16 on May 10, 2020 (16/1.9 = 8.42 rounding to 8.5 keys)

Sold for 13.1 on May 31, 2020 (13.1/1.91 = 6.86 rounding to 7 keys)

Sold for 16.99 on June 2, 2020 (16.99/1.94 = 8.76 rounding to 9 keys)

https://marketplace.tf/items/tf2/30863;5;u36

Classifieds:

https://gyazo.com/0b061e144b0682288aa7f5006c75315c

1 @ 7 keys

3 @ 8.5 keys

1 @ 9 keys

Highest buyers are at 7 and 7.08. Excluding 7.

Taking a range of 8.5-9 keys here.