Sale 1:

https://backpack.tf/profiles/76561197999873164#!/compare/1580515200/1580601600

https://backpack.tf/profiles/76561198041860163#!/compare/1580428800/1580515200

Sold for 13 keys

Sale 2:

https://backpack.tf/profiles/76561198323565601#!/compare/1582156800/1582243200

https://backpack.tf/profiles/76561198945865817#!/compare/1582243200/1584144000

Sold for 13 keys

sale 3:

https://backpack.tf/profiles/76561198945865817#!/compare/1585958400/1586217600

https://backpack.tf/profiles/76561198295486957#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198059021831#!/compare/1585872000/1585958400

https://backpack.tf/profiles/76561198295486957#!/compare/1586217600/1586304000

QS then transfer

sale 4:

https://backpack.tf/profiles/76561198295486957#!/compare/1586822400/1586908800

https://backpack.tf/profiles/76561198073242439#!/compare/1586822400/1586908800

Sold for 11 keys

Sale 5:

https://backpack.tf/profiles/76561198073242439#!/compare/1586822400/1586908800

https://backpack.tf/profiles/76561198043059273#!/compare/1586736000/1586908800

Untrace

Sale 6:

https://backpack.tf/profiles/76561198043059273#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198150597524#!/compare/1587081600/1587168000

Bulk

sale 7:

https://backpack.tf/profiles/76561198104168501#!/compare/1579910400/1580083200

https://backpack.tf/profiles/76561198337734785#!/compare/1579824000/1579910400

QS

sale 8:

https://backpack.tf/profiles/76561198337734785#!/compare/1579824000/1579910400

https://backpack.tf/profiles/76561198144879030#!/compare/1579305600/1582761600

Sold for Miami Wet Works

use there

sale 9:

https://backpack.tf/profiles/76561198144879030#!/compare/1582848000/1583020800

https://backpack.tf/profiles/76561198841279602#!/compare/1582761600/1582848000

QS

sale 10:

https://backpack.tf/profiles/76561198841279602#!/compare/1582848000/1582934400

https://backpack.tf/profiles/76561198354459626#!/compare/1582848000/1582934400

Sold for ~10 keys

Sale 11:

https://backpack.tf/profiles/76561198239328092#!/compare/1586304000/1586649600

https://backpack.tf/profiles/76561198297884699#!/compare/1586563200/1586649600

Sold for a lot of items, roughly totals ~27 keys.

Sale 12:

https://backpack.tf/profiles/76561198303886984#!/compare/1579651200/1579996800

https://backpack.tf/profiles/76561198247169086#!/compare/1579737600/1579996800

Sold for Smoking Head Warmer

use there

https://bot.tf/stats/listings/MGZO3KXW

B/O of 13 keys

sale 13:

https://backpack.tf/profiles/76561198247169086#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561198011321852#!/compare/1580515200/1580601600

Untrace

Sale 14:

https://backpack.tf/profiles/76561198011321852#!/compare/1585526400/1585612800

https://backpack.tf/profiles/76561198118545253#!/compare/1573430400/1585699200

Sold for 13 keys (only set that doesn't have a pairing)

Sale 15:

https://backpack.tf/profiles/76561198118545253#!/compare/1573430400/1585699200

https://backpack.tf/profiles/76561198841279602#!/compare/1585612800/1585699200

Untrace

sale 16:

https://backpack.tf/profiles/76561198841279602#!/compare/1587168000/1587254400

https://backpack.tf/profiles/76561198053532761#!/compare/1587168000/1587513600

Sold for ~11 keys

sale 17:

https://marketplace.tf/items/tf2/146;5;u29

$29 / $1.77 = 16.38 keys

Total sales @:

10, 11, 11, 13, 13, 13, 16, 27 keys

buyers up to 10.53 keys,

2 sellers at roughly 12 keys,

calling 10 low,

16 high,

taking 11 - 13 keys, conserving around sellers.