Sale 1:

https://backpack.tf/profiles/76561198197292179#!/compare/1581379200/1582848000

https://backpack.tf/profiles/76561198123177303#!/compare/1580947200/1583539200

Untrace

sale 2:

https://backpack.tf/profiles/76561198123177303#!/compare/1583539200/1585958400

https://backpack.tf/profiles/76561198097271466#!/compare/1584230400/1584316800

Untrace

sale 3:

https://backpack.tf/profiles/76561198097271466#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198425419047#!/compare/1585353600/1587427200

Sold for ~8.5 keys

Sale 4:

https://backpack.tf/profiles/76561198341171690#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561198257977681#!/compare/1585440000/1585526400

https://backpack.tf/profiles/76561198341171690#!/compare/1585872000/1585785600

Tradeback

Sale 5:

https://backpack.tf/profiles/76561198341171690#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198957845521#!/compare/1585440000/1586304000

Can trace 7 keys

sale 6:

https://backpack.tf/profiles/76561198143613491#!/compare/1580688000/1581033600

https://backpack.tf/profiles/76561198218628708#!/compare/1580688000/1581033600

Bulk

sale 7:

https://backpack.tf/profiles/76561198101289864#!/compare/1583539200/1584230400

https://backpack.tf/profiles/76561198059042690#!/compare/1582070400/1583539200

Bulk BP

Sale 8:

https://backpack.tf/profiles/76561198059042690#!/compare/1587254400/1587427200

https://backpack.tf/profiles/76561198086948995#!/compare/1587340800/1587427200

Bulk QS

sale 9:

https://backpack.tf/profiles/76561198135961280#!/compare/1585440000/1585699200

https://backpack.tf/profiles/76561197995246997#!/compare/1585440000/1585612800

Untrace

sale 10:

https://backpack.tf/profiles/76561197995246997#!/compare/1585612800/1585699200

https://backpack.tf/profiles/76561198295486957#!/compare/1585612800/1585699200

QS

sale 11:

https://backpack.tf/profiles/76561198295486957#!/compare/1585699200/1585785600

https://backpack.tf/profiles/76561198059021831#!/compare/1585699200/1585785600

Bulk

sale 12:

https://backpack.tf/profiles/76561198059021831#!/compare/1585958400/1586044800

https://backpack.tf/profiles/76561198141670894#!/compare/1585872000/1585958400

Sold for G Fetti Tavish

use there

https://bot.tf/stats/listings/MXXER3ZD

B/O of 10 keys

Sale 13:

https://backpack.tf/profiles/76561198141670894#!/compare/1586304000/1586822400

https://backpack.tf/profiles/76561198340634356#!/compare/1586304000/1586390400

Sold with negligible sweets for ST Shred

use there

https://bot.tf/stats/listings/4R0D72J5

B/O of 10 keys

sale 14:

https://backpack.tf/profiles/76561198340634356#!/compare/1587081600/1587168000

https://backpack.tf/profiles/76561198010482185#!/compare/1587081600/1587168000

Sold for 9 keys

sale 15:

https://marketplace.tf/items/tf2/31024;5;u8

$19.99 / $1.76 = 11.36 keys <-- https://backpack.tf/item/7868141810

$16.67 / $1.69 = 9.86 keys

$20 / $1.68 = 11.90 keys

$19.99 / $1.77 = 11.29 keys

Total sales @:

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

buyers up to ~8 keys,

seller at 12 keys,

https://bot.tf/stats/listings/MQ056GGP

taking 9 - 12 keys.