Sale 1:

https://backpack.tf/profiles/76561198151819780#!/compare/1583884800/1585094400

https://backpack.tf/profiles/76561198112281935#!/compare/1585353600/1585440000

Untrace

sale 2:

https://backpack.tf/profiles/76561198112281935#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561198002757046#!/compare/1585353600/1585440000

QS for ~40 keys

sale 3:

https://backpack.tf/profiles/76561198002757046#!/compare/1585353600/1585440000

https://backpack.tf/profiles/76561198091502579#!/compare/1585267200/1585440000

Sold for 52 keys

sale 4:

https://backpack.tf/profiles/76561198091502579#!/compare/1585440000/1585526400

https://backpack.tf/profiles/76561198095803025#!/compare/1584835200/1585872000

Untrace

Sale 5:

https://backpack.tf/profiles/76561198049011747#!/compare/1586995200/1587945600

https://backpack.tf/profiles/76561198254882979#!/compare/1587945600/1588032000

https://backpack.tf/profiles/76561198305494036#!/compare/1587945600/1588032000

Untrace then QS

sale 6:

https://backpack.tf/profiles/76561198305494036#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561198012504506#!/compare/1588377600/1588896000

Sold for 55 keys

Sale 7:

https://backpack.tf/profiles/76561198299425567#!/compare/1581465600/1581724800

https://backpack.tf/profiles/76561198096734571#!/compare/1581465600/1581552000

Bulk

sale 8:

https://backpack.tf/profiles/76561198096734571#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198061207144#!/compare/1581811200/1581897600

Sold for Beams Glengarry

use there

Sale 9:

https://backpack.tf/profiles/76561198061207144#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198059136265#!/compare/1583020800/1583107200

Sold for 60 keys

Sale 10:

https://marketplace.tf/items/tf2/47;5;u13

$80 / $1.69 = 47.34 keys

$72.22 / $1.69 = 42.73 keys <--- buy order

$119.99 / $1.69 = 71.00 keys

$65.88 / $1.69 = 38.98 keys <---- buy order

$92.57 / $1.80 = 51.43 keys <---- https://backpack.tf/item/1076388761 | https://bot.tf/stats/listings/Y3WZX0RR B/O of 70 keys

Total sales @:

47, 51, 52, 55, 60, 71 keys

considering amount of low sales,

taking 52 - 60 keys.