Resuggestion from https://backpack.tf/suggestion/5e343489d1891764a36dcf67

All credits to original suggester

Sale 1

https://backpack.tf/profiles/76561198210558337#!/compare/1573430400/1580342400

https://backpack.tf/profiles/76561197999873164#!/compare/1574899200/1574985600

Untrace

Sale 2

https://backpack.tf/profiles/76561198089253101#!/compare/1573257600/1573344000

https://backpack.tf/profiles/76561198987144033#!/compare/1573257600/1573344000

Bot transfer

Sale 3

https://backpack.tf/profiles/76561198934156457#!/compare/1575763200/1575849600

https://backpack.tf/profiles/76561198075024818#!/compare/1575763200/1575849600

Untraced

Sale 4

https://backpack.tf/profiles/76561198080179568#!/compare/1574726400/1574812800

https://backpack.tf/profiles/76561198173100527#!/compare/1574726400/1574812800

Sold for 7 keys pure

Sale 5

https://backpack.tf/profiles/76561198173100527#!/compare/1575158400/1575331200

https://backpack.tf/profiles/76561198080179568#!/compare/1575244800/1575331200

Untraced. Probs quicksold back tho.

Sale 6

https://backpack.tf/profiles/76561198118108167#!/compare/1575504000/1575936000

https://backpack.tf/profiles/76561198337734785#!/compare/1575849600/1575936000

Sold to bot for ~ 5.5 keys - https://bot.tf/stats/listings/4KREQRD1

Marketplace sales https://marketplace.tf/items/tf2/290;5;u58

1. Sold on 11/7/2019 for $9.05 / $1.79 = 5.06 keys

2. Sold on 11/15/201 for $11.1 / $1.80 = 6.17 keys

3. Sold on 1/25/2020 for $12.78 / $1.79 = 7.14 keys

4. Sold on 1/27/2020 for $12.5 / $1.77 = 7.06 keys

5. Sold on 1/28/2020 for $12.78 / $1.78 = 7.18 keys

Going with 7 keys flat as per moderator comment