Suggestion and evidence provided by Shuffle Spy and (Sh) Cerberus

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https://backpack.tf/suggestion/5eba27020a41be149773ea11

Bought for 9 keys from an instant trade user!

https://gyazo.com/9e35bc02e5ab7f90ae3f06a15627e3fc

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https://marketplace.tf/items/tf2/1110;5;u3026 - Sold for $16.99 (9 Keys), $15 (8 Keys), $11.21 (low), and $16.99 (8.5 Keys)

https://backpack.tf/profiles/76561198404778877#!/compare/1588550400/1588723200 - Can't tell

https://backpack.tf/profiles/76561198280693486#!/compare/1591142400/1591228800 - 7 Keys

https://backpack.tf/profiles/76561198083622795#!/compare/1591660800/1591747200 - Can't tell

https://imgur.com/a/zRM1JqN - 2 sales at 6 Keys

https://backpack.tf/profiles/76561198358296372#!/compare/1586124000/1586210400 - 6 Key sale #1

https://backpack.tf/profiles/76561198358296372#!/compare/1588716000/1588802400 - 6 Key sale #2

https://imgur.com/a/FWtxcXh - Buyers are currently at 6.2 Keys, so the 6 Key sales can be excluded as low

https://backpack.tf/u/76561198453530349

https://backpack.tf/u/76561198280693486

https://backpack.tf/u/76561198314211872

https://backpack.tf/u/76561198342161127

https://backpack.tf/u/76561198005032783

You can close this suggestion and make a new one using the evidence you and I both have from 7 to 9 Keys.

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I was given permission to take this suggestion