Sale 1:

https://backpack.tf/profiles/76561198161977280#!/compare/1551571200/1551657600

https://backpack.tf/profiles/76561198335791307#!/compare/1551571200/1551657600

QS to bot

Sale 2:

https://backpack.tf/profiles/76561198045174236#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198419584303#!/compare/1550534400/1550620800

Sold for 23 keys

Sale 3:

https://backpack.tf/profiles/76561198419584303#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198118157202#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198355886203#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198450058913#!/compare/1550448000/1550620800

https://backpack.tf/profiles/76561198063056614#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198129230935#!/compare/1550534400/1550620800

Untrace

Sale 4:

https://backpack.tf/profiles/76561198129230935#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198317418604#!/compare/1550534400/1550620800

QS to bot, 16 keys

Sale 5:

https://backpack.tf/profiles/76561198317418604#!/compare/1552867200/1552953600

https://backpack.tf/profiles/76561198815593082#!/compare/1552867200/1552953600

Sold for 19 keys

Sale 6:

https://backpack.tf/profiles/76561198815593082#!/compare/1553472000/1553558400

https://backpack.tf/profiles/76561198168863803#!/compare/1553385600/1553472000

Bulk

Sale 7:

https://backpack.tf/profiles/76561198262191071#!/compare/1546992000/1547596800

https://backpack.tf/profiles/76561198863709718#!/compare/1547510400/1547596800

Untrace / bulk

Sale 8:

https://backpack.tf/profiles/76561198863709718#!/compare/1547596800/1547683200

https://backpack.tf/profiles/76561198873586080#!/compare/1547942400/1547942400

Untrace

Sale 9:

https://backpack.tf/profiles/76561198165205268#!/compare/1551657600/1551744000

https://backpack.tf/profiles/76561198154023527#!/compare/1551571200/1551744000

Bulk

Sale 10:

https://backpack.tf/profiles/76561198154023527#!/compare/1551744000/1552003200

https://backpack.tf/profiles/76561198119559226#!/compare/1551916800/1552003200

Bulky

Sale 11:

https://backpack.tf/profiles/76561198119559226#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198071082937#!/compare/1551830400/1552003200

Can trace a craft hat

Sale 12:

https://backpack.tf/profiles/76561198071082937#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198118922746#!/compare/1552003200/1552089600

Sold for Bubbling Airdog(9.5) + Steaming Big Country + negligible sweets

Country Mini:

https://backpack.tf/suggestion/5cb22fcf6780723bce5e72c4

Suggestion for 11.5 keys

Total is 21 keys

Sale 13:

https://backpack.tf/profiles/76561198118922746#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198249975774#!/compare/1552003200/1552089600

Untrace

Sale 14:

https://backpack.tf/profiles/76561198249975774#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198002757046#!/compare/1552003200/1552089600

QS

Sale 15:

https://backpack.tf/profiles/76561198002757046#!/compare/1552089600/1552176000

https://backpack.tf/profiles/76561198095862827#!/compare/1552089600/1552176000

Sold for ~16 keys

Sale 16:

https://backpack.tf/profiles/76561198003920441#!/compare/1552953600/1553731200

SCM

Sale 17 - 20:

https://marketplace.tf/items/30175;5;u31

$32.00 / $1.79 = 17.88 keys

$32.00 / $1.79 = 17.88 keys

$31.59 / $1.79 = 17.65 keys

$43.00 / $1.8 = 23.89 keys

Total sales @:

16, 17.65, 17.88, 17.88, 19, 21, 23, 23.89 keys

Sellers at 20,

buyers up to 16 keys,

gonna go with 18 - 23, trying to preserve range around unsold.