Sale 1:

https://backpack.tf/profiles/76561198168863803#!/compare/1581465600/1581552000

https://backpack.tf/profiles/76561198342476957#!/compare/1581465600/1581552000

Sold for 10 keys

Sale 2:

https://backpack.tf/profiles/76561198337734785#!/compare/1580515200/1580601600

https://backpack.tf/profiles/76561198348514347#!/compare/1580515200/1580860800

Untrace

sale 3:

https://backpack.tf/profiles/76561198916430174#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198196410274#!/compare/1583452800/1583539200

Sold with 1 key for TW Warm Up

use there

https://bot.tf/stats/listings/Y35QKP2R

B/O of ~9 keys

Sale 4:

https://backpack.tf/profiles/76561198196410274#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198179944875#!/compare/1583193600/1583539200

Sold for Smoking Shanter(7.5) + 2 keys

Total is 9.5 keys

sale 5:

https://backpack.tf/profiles/76561198080179568#!/compare/1580428800/1580515200

https://backpack.tf/profiles/76561198174264905#!/compare/1580428800/1581120000

Sold for ~8.5 keys

sale 6:

https://backpack.tf/profiles/76561198174264905#!/compare/1584316800/1584403200

https://backpack.tf/profiles/76561198341171690#!/compare/1584316800/1584403200

QS for ~7 keys

Sale 7:

https://backpack.tf/profiles/76561198341171690#!/compare/1584748800/1584835200

https://backpack.tf/profiles/76561198354459626#!/compare/1584748800/1584835200

Sold for 9 keys

sale 8:

https://backpack.tf/profiles/76561198114402400#!/compare/1581379200/1581465600

https://backpack.tf/profiles/76561198416157114#!/compare/1581033600/1581897600

Untrace

Sale 9:

https://backpack.tf/profiles/76561198890621303#!/compare/1585958400/1586131200

https://backpack.tf/profiles/76561198196410274#!/compare/1585958400/1586044800

Sold with ~1 key in sweets for Steaming Hermes + negligible sweets

use there

sale 10:

https://backpack.tf/profiles/76561198196410274#!/compare/1585958400/1586044800

https://backpack.tf/profiles/76561198128971451#!/compare/1585958400/1586044800

Sold with ~0.5 keys in sweets for KaW Warm Up(10.5)

Total is 10 keys

Sale 11:

https://backpack.tf/profiles/76561198128971451#!/compare/1586044800/1586131200

https://backpack.tf/profiles/76561198148514448#!/compare/1585958400/1586044800

Untrace

sale 12:

https://backpack.tf/profiles/76561198148514448#!/compare/1585958400/1586044800

https://backpack.tf/profiles/76561198179712943#!/compare/1585958400/1586044800

Sold for ~10 keys (7 used to buy Guad)

Sale 13:

https://backpack.tf/profiles/76561198179712943#!/compare/1586044800/1586131200

https://backpack.tf/profiles/76561198244745738#!/compare/1586044800/1586131200

Untrace

sale 14:

https://backpack.tf/profiles/76561198244745738#!/compare/1586044800/1586131200

https://backpack.tf/profiles/76561198230388852#!/compare/1586044800/1586131200

Can trace 5 keys

sale 15:

https://backpack.tf/profiles/76561198230388852#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198046017157#!/compare/1574294400/1586217600

Sold with ~0.5 keys in sweets for Steaming Lucha

Lucha sales are close to buyers:

https://pastebin.com/fCKmg9HF

Sale 16:

https://marketplace.tf/items/tf2/174;5;u57

$20 / $1.79 = 11.17 keys

$19.99 / $1.77 = 11.29 keys

$19.99 / $1.68 = 11.90 keys

$19.99 / $1.79 = 11.17 keys

Total sales @:

8.5, 9, 9.5, 10, 10, 10, 11, 11, 11, 12 keys

buyers up to ~7.5 keys,

unsold for months at 10 keys,

due to the good amount of sales over 10,

taking 9 - 11 keys, conserving around the unsold.