Thank's to "TF2Scourge" for giving me the history links.

First Sale:

https://marketplace.tf/items/30311;5;u61

$79.00 / $1.75 = 45.14 keys (Jan 14, 19)

~45 Keys

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Second Sale:

https://backpack.tf/profiles/76561198312716051#!/compare/NaN/1550793600

https://backpack.tf/profiles/76561198084367252#!/compare/1550448000/1550793600

(Couldn't trace)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Third Sale:

https://marketplace.tf/items/30311;5;u61

$65.00 / $1.8 = 36.11 keys (Feb 21, 19)

~36 Keys (Quick Sell)

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Forth Sale:

https://marketplace.tf/items/30311;5;u61

$73.86 / $1.79 = 41.26 keys (Mar 7, 19)

~41 Keys

[b]Fifth Sale:

https://backpack.tf/profiles/76561198084367252#!/compare/1553040000/1553126400

https://backpack.tf/profiles/76561198189381361#!/compare/1552780800/1553126400

(Bulk)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Valid Sales 41,45

Going With 41-45