Sale 1:

https://backpack.tf/profiles/76561198110988031#!/compare/1579651200/1579737600

https://backpack.tf/profiles/76561198993631639#!/compare/1579651200/1579737600

https://backpack.tf/profiles/76561198988598638#!/compare/1579651200/1579737600

https://backpack.tf/profiles/76561198988598638#!/compare/1579737600/1580256000

https://backpack.tf/profiles/76561198993686702#!/compare/1579910400/1579996800

Bulk / low / untrace

sale 2:

https://backpack.tf/profiles/76561198993686702#!/compare/1579996800/1580169600

https://backpack.tf/profiles/76561198196894698#!/compare/1586217600/1586304000

SCM

sale 3:

https://backpack.tf/profiles/76561198196894698#!/compare/1586822400/1586908800

https://backpack.tf/profiles/76561198454615761#!/compare/1586822400/1586908800

sold for 9 keys

sale 4:

https://backpack.tf/profiles/76561198172355430#!/compare/1580688000/1581206400

https://backpack.tf/profiles/76561198131081286#!/compare/1581120000/1581206400

Sold for Planets Fat Man + 1 key

use there, few sales

https://bot.tf/stats/listings/Y352D60Q

B/O of 11 keys

sale 5:

https://backpack.tf/profiles/76561198131081286#!/compare/1581292800/1581379200

https://backpack.tf/profiles/76561198978832107#!/compare/1581292800/1581379200

Sold with 1 key for Steaming Charmer

use there

sale 6:

https://backpack.tf/profiles/76561198021055079#!/compare/1586649600/1586736000

https://backpack.tf/profiles/76561198340645859#!/compare/1586649600/1586736000

Sold for 11 keys

sale 7:

https://backpack.tf/profiles/76561198340645859#!/compare/1586736000/1586908800

https://backpack.tf/profiles/76561198080179568#!/compare/1586736000/1586908800

QS

sale 8:

https://backpack.tf/profiles/76561198268420141#!/compare/1580947200/1584316800

https://backpack.tf/profiles/76561198202186637#!/compare/1580947200/1582416000

Bulk

sale 9:

https://marketplace.tf/items/tf2/30030;5;u62

$22.78 / $1.69 = 13.48 keys

https://backpack.tf/item/7956811079

https://bot.tf/stats/listings/4P00POL5

B/O of ~10 keys, capping

total sales @:

9, 10, 11 keys

buyers up to 9 keys,

sellers down to 11 keys,

calling 9 low,

taking 10 - 11 keys