Sale 1:

https://backpack.tf/profiles/76561198816075573#!/compare/1593993600/1594080000

https://backpack.tf/profiles/76561198380131467#!/compare/1593820800/1594080000

Sold for ~6.5 keys

Sale 2:

https://backpack.tf/profiles/76561198380131467#!/compare/1594080000/1594166400

https://backpack.tf/profiles/76561198157452762#!/compare/1594080000/1594166400

Sold with 1 key for Miami Sober

Sober Mini:

https://backpack.tf/suggestion/5f2a272409d84f4ccd3c9491

Suggestion for 8.25 keys

Total is 7.25 keys

sale 3:

https://backpack.tf/profiles/76561198157452762#!/compare/1594771200/1596067200

https://backpack.tf/profiles/76561198048851745#!/compare/1593907200/1595376000

Sold for 6 keys (QS)

sale 4:

https://backpack.tf/profiles/76561198856402742#!/compare/1592956800/1593734400

https://backpack.tf/profiles/76561198048851745#!/compare/1593302400/1593388800

QS

Sale 5:

https://backpack.tf/profiles/76561198093118352#!/compare/1588723200/1589241600

https://backpack.tf/profiles/76561198414515070#!/compare/1588809600/1588896000

Untrace / Bulk

sale 6:

https://backpack.tf/profiles/76561198414515070#!/compare/1588896000/1588982400

https://backpack.tf/profiles/76561198053844140#!/compare/1551139200/1591920000

Untrace

sale 7:

https://backpack.tf/profiles/76561198080179568#!/compare/1592179200/1592265600

https://backpack.tf/profiles/76561199013092967#!/compare/1592784000/1592784000

Can trace ref

sale 8:

https://backpack.tf/profiles/76561199013092967#!/compare/1592784000/1596499200

https://backpack.tf/profiles/76561198341171690#!/compare/1593907200/1594339200

QS

sale 9:

https://backpack.tf/item/1846927500

https://backpack.tf/profiles/76561198341171690#!/compare/1595462400/1595635200

https://bot.tf/stats/item?def=229&q=5&ef=Dead%20Presidents&craft=1&aus=0&ks=0&source=browser_script

possible sale for 7, no endpoint.

Sale 10:

https://marketplace.tf/items/tf2/229;5;u60

$15.84 / $1.89 = 8.38 keys <--- https://backpack.tf/item/4214993743

$15.84 / $1.89 = 8.38 keys <--- https://backpack.tf/item/2624564376

$15.84 / $1.96 = 8.08 keys <--- https://backpack.tf/item/7956748978

$17.5 / $1.99 = 8.79 keys

Total sales @:

6.5, 7.5, 8, 8.5, 8.5, 9 keys

buyers up to ~6.37 keys, one high buyer at ~6.5 keys,

calling 6.5 low,

9 high to balance,

taking 7.5 - 8.5 keys.