Sale 1:

https://backpack.tf/profiles/76561198335791307#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561198106729017#!/compare/1583884800/1584057600

Sold for 15 keys

sale 2:

https://backpack.tf/profiles/76561198106729017#!/compare/1586563200/1586908800

https://backpack.tf/profiles/76561198080179568#!/compare/1586649600/1586736000

QS

sale 3:

https://backpack.tf/profiles/76561198080179568#!/compare/1586736000/1586822400

https://backpack.tf/profiles/76561198448089440#!/compare/1586649600/1586736000

Sold for 10 keys

sale 4:

https://backpack.tf/profiles/76561198342161127#!/compare/1581120000/1581206400

https://backpack.tf/profiles/76561198246122716#!/compare/1581033600/1581120000

Sold for 14 keys

Sale 5:

https://backpack.tf/profiles/76561198246122716#!/compare/1582502400/1582761600

https://backpack.tf/profiles/76561198838788284#!/compare/1582243200/1582588800

Bulk

sale 6:

https://backpack.tf/profiles/76561198838788284#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561199015360978#!/compare/1583020800/1583107200

Sold with ~0.5 keys in sweets for Steaming Company

use there

https://bot.tf/stats/listings/MNLPDKW3

B/O of 14 keys

Sale 7:

https://backpack.tf/profiles/76561199015360978#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198008993652#!/compare/1573689600/1583107200

untrace

sale 8:

https://backpack.tf/profiles/76561198008993652#!/compare/1573689600/1583107200

https://backpack.tf/profiles/76561198055224435#!/compare/1583020800/1583107200

Sold for 9 keys

Sale 9:

https://backpack.tf/profiles/76561198055224435#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198986098845#!/compare/1584403200/1584489600

Bulk

Sale 10:

https://backpack.tf/profiles/76561198986098845#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198020673987#!/compare/1584748800/1584835200

Untrace

Sale 11:

https://backpack.tf/profiles/76561198020673987#!/compare/1584748800/1584835200

https://backpack.tf/profiles/76561198394877897#!/compare/1584748800/1584835200

QS for 8 keys

Sale 12:

https://backpack.tf/profiles/76561198394877897#!/compare/1579910400/1579996800

https://backpack.tf/profiles/76561198156255538#!/compare/1579910400/1579996800

Transfer

sale 13:

https://marketplace.tf/items/tf2/30769;5;u57

$27.16 / $1.75 = 15.52 keys

https://backpack.tf/item/5697674259

https://bot.tf/stats/listings/4ZK65LOX

B/O of 14 keys, capping

Total sales @:

8, 9, 10, 14, 14, 15 keys

buyers up to ~8.27 keys,

calling 8 low,

15 high to balance,

taking 9 - 14 keys.