Sale 1:

https://backpack.tf/profiles/76561198141455733#!/compare/1584576000/1584662400

https://backpack.tf/profiles/76561198989883133#!/compare/1583971200/1584662400

https://backpack.tf/profiles/76561198141455733#!/compare/1585353600/1586131200

Untrace

Sale 2:

https://backpack.tf/profiles/76561198134546405#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561197984373540#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561198199501285#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561197984373540#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561198061353482#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561198053547683#!/compare/1580256000/1580774400

Bulk / untrace

sale 3:

https://backpack.tf/profiles/76561198053547683#!/compare/1581724800/1581897600

https://backpack.tf/profiles/76561198113889163#!/compare/1581724800/1581811200

Sold with ~4 keys in sweets for Planets Capper

use there

sale 4:

https://backpack.tf/profiles/76561198113889163#!/compare/1581724800/1581811200

https://backpack.tf/profiles/76561198011321852#!/compare/1581724800/1581811200

Sold with negligible sweets for Steaming YWN

YWN Mini:

https://backpack.tf/suggestion/5ea4ccbf05f27424dc5412e3

suggestion for 10.5 keys

Total is ~10 keys

Sale 5:

https://backpack.tf/profiles/76561198011321852#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198112817599#!/compare/1583193600/1583280000

Sold for TW Toque + ~1 key in sweets

toque Mini:

https://backpack.tf/suggestion/5ea4df711ce81a6bad433726

Suggestion for 11.5 keys

Total is 12.5 keys

https://bot.tf/stats/listings/MVRVL7VV

B/o of 12 keys, capping

Sale 6:

https://backpack.tf/profiles/76561198112817599#!/compare/1583280000/1583366400

https://backpack.tf/profiles/76561198357120931#!/compare/1583280000/1583366400

Sold with 1 key for TW Airdog

Airdog Mini:

https://backpack.tf/suggestion/5ea4e56895461d54822e2c72

suggestion for 9 keys

total is 8 keys

https://bot.tf/stats/listings/46N58ZJ9

B/O of 12 keys

Sale 7:

https://backpack.tf/profiles/76561198357120931#!/compare/1583452800/1583539200

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

https://backpack.tf/profiles/76561198259183894#!/compare/1583452800/1583539200

Untrace

sale 8:

https://backpack.tf/profiles/76561198259183894#!/compare/1583971200/1584144000

https://backpack.tf/profiles/76561199020433063#!/compare/1583971200/1584057600

Sold for 9 keys

sale 9:

https://backpack.tf/profiles/76561198118157202#!/compare/1585785600/1585872000

https://backpack.tf/profiles/76561198880361166#!/compare/1586217600/1586304000

Bulk

sale 10:

https://backpack.tf/profiles/76561198880361166#!/compare/1586304000/1586390400

https://backpack.tf/profiles/76561199017926833#!/compare/1586736000/1586822400

https://backpack.tf/profiles/76561199017926833#!/compare/1586822400/1586908800

https://backpack.tf/profiles/76561198209728928#!/compare/1586822400/1586908800

Bulk

sale 11:

https://backpack.tf/profiles/76561198209728928#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198216561389#!/compare/1586995200/1587081600

Untrace

sale 12:

https://backpack.tf/profiles/76561198129309685#!/compare/1581724800/1583366400

https://backpack.tf/profiles/76561198104437927#!/compare/1581638400/1581724800

untrace

sale 13:

https://backpack.tf/profiles/76561198104437927#!/compare/1581724800/1581897600

https://backpack.tf/profiles/76561198142307778#!/compare/1581811200/1581897600

Sold for 8 keys

sale 14:

https://backpack.tf/profiles/76561198142307778#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198796395930#!/compare/1581811200/1581897600

Sold with 1 key for Mind Handcraft

use there

Sale 15:

https://backpack.tf/profiles/76561198796395930#!/compare/1582070400/1582156800

https://backpack.tf/profiles/76561198161014431#!/compare/1581984000/1582070400

Sold for 9 keys

sale 16:

https://backpack.tf/profiles/76561198161014431#!/compare/1582243200/1582329600

https://backpack.tf/profiles/76561198323565601#!/compare/1582243200/1582329600

QS for ~8 keys

sale 17:

https://backpack.tf/profiles/76561198323565601#!/compare/1582329600/1582416000

https://backpack.tf/profiles/76561198035883232#!/compare/1561334400/1583712000

SCM

Sale 18:

https://backpack.tf/profiles/76561198035883232#!/compare/1583712000/1584576000

https://backpack.tf/profiles/76561198272038643#!/compare/1584489600/1584576000

Bulk

Sale 19:

https://backpack.tf/profiles/76561198272038643#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198965016033#!/compare/1586131200/1586217600

Sold with 1 key for CTFL Noble

use there

sale 20:

https://backpack.tf/profiles/76561198965016033#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198275222296#!/compare/1586131200/1586304000

Bulk

Sale 21, 22:

https://marketplace.tf/items/tf2/183;5;u34

$14 / $1.78 = 7.87 keys

$16 / $1.78 = 8.99 keys

Total sales @:

8, 8, 8, 8, 9, 9, 9, 10, 12 keys

buyers up to 8.67 keys,

taking 9 - 10 keys (12 is B/O capped)