Sale 1:

https://backpack.tf/profiles/76561198011321852#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198115233455#!/compare/1586217600/1586304000

Bulk

sale 2:

https://backpack.tf/profiles/76561198115233455#!/compare/1586390400/1586563200

https://backpack.tf/profiles/76561198095022965#!/compare/1586390400/1586476800

Bulk

sale 3:

https://backpack.tf/profiles/76561197999873164#!/compare/1580947200/1581033600

https://backpack.tf/profiles/76561198189137465#!/compare/1580947200/1581033600

Sold for 11 keys

sale 4:

https://backpack.tf/profiles/76561198189137465#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198841279602#!/compare/1582070400/1582156800

Untrace

sale 5:

https://backpack.tf/profiles/76561198841279602#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198083613358#!/compare/1582588800/1583280000

Sold for ~9 keys

sale 6:

https://backpack.tf/profiles/76561198289696616#!/compare/1580601600/1585785600

https://backpack.tf/profiles/76561198305492646#!/compare/1580515200/1580601600

Untrace

sale 7:

https://backpack.tf/profiles/76561198305492646#!/compare/1580601600/1580688000

https://backpack.tf/profiles/76561198254620348#!/compare/1580601600/1580688000

Bulk

Sale 8:

https://backpack.tf/profiles/76561198254620348#!/compare/1580688000/1580774400

https://backpack.tf/profiles/76561198414201697#!/compare/1580688000/1580774400

untrace

sale 9:

https://backpack.tf/profiles/76561198414201697#!/compare/1580774400/1580860800

https://backpack.tf/profiles/76561198275228442#!/compare/1580774400/1580860800

Sold for ~6.5 keys

sale 10:

https://backpack.tf/profiles/76561198275228442#!/compare/1582243200/1582329600

https://backpack.tf/profiles/76561198066295629#!/compare/1582243200/1582329600

Sold for ~8.5 keys in sweets

Sale 11:

https://backpack.tf/profiles/76561198066295629#!/compare/1582329600/1582416000

https://backpack.tf/profiles/76561198337734785#!/compare/1582329600/1582416000

QS

sale 12:

https://backpack.tf/profiles/76561198337734785#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198312816066#!/compare/1585180800/1585267200

https://backpack.tf/profiles/76561198841031804#!/compare/1585094400/1585180800

Untrace

sale 13:

https://backpack.tf/profiles/76561198841031804#!/compare/1585180800/1585267200

https://backpack.tf/profiles/76561198838788284#!/compare/1585180800/1585267200

Sold for KaW Whoopee

use there

https://bot.tf/stats/listings/Y800O9XW

B/O of 13 keys

sale 14:

https://backpack.tf/profiles/76561198838788284#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561198055622215#!/compare/1585353600/1585440000

Bulk

sale 15:

https://backpack.tf/profiles/76561198080179568#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198354459626#!/compare/1583366400/1583452800

Untrace

Sale 16:

https://marketplace.tf/items/tf2/247;5;u30

$22.99 / $1.69 = 13.60 keys

Total sales @:

6.5, 8.5, 9, 11, 14 keys

buyers up to ~7.5 keys,

seller for 15 keys,

calling 6.5 low,

14 high,

taking 9 - 11 keys