Marketplace Sales:

https://marketplace.tf/items/tf2/30135;5;u57

$22.99, March 28th

$21, March 31st

$22.99, April 16th

$23.99, April 22nd

https://backpack.tf/item/5015426877 - 22nd April

https://bot.tf/stats/listings/Y5ZJ6WW2 - B/O of 13

http://manic.tf/keyprice?at=2020-04-22&price=23.99 - $23.99 / $1.75 = 13.71 keys

Caps at 13

https://backpack.tf/item/7956281127 - 31st March

https://bot.tf/stats/listings/Y3WW8V3R - No B/O

http://manic.tf/keyprice?at=2020-03-31&price=21 - $21 / $1.69 = 12.43 keys

Couldn’t find other histories

http://manic.tf/keyprice?at=2020-03-28&price=22.99 - $22.99 / $1.69 = 13.60 keys

https://bot.tf/stats/listings/4KVV10KX - No B/O, wasn’t either of the 13 key sellers

http://manic.tf/keyprice?at=2020-04-16&price=22.99 - $22.99 / $1.78 = 12.92 keys

https://bot.tf/stats/listings/4P09R350 - No important B/O

After rounding, we have:

[b]Other Sales:

https://backpack.tf/item/7957361162 (#1)

https://backpack.tf/item/7956281127 (#2)

#1

Untraceable

https://backpack.tf/profiles/76561198055431367#!/compare/1582156800/1582243200

https://backpack.tf/profiles/76561198271049443#!/compare/1582156800/1582243200

Probably sold to a gambled, and gambled away before being scanned in their backpack.

#2

Untraceable

https://backpack.tf/profiles/76561198020673987#!/compare/1586563200/1586649600

https://backpack.tf/profiles/76561198850274253#!/compare/1586476800/1586563200

Sellers:

https://i.imgur.com/TSKOVXi.png

https://backpack.tf/item/7956281127 - ~12.5 keys

https://backpack.tf/item/7956360256 - 13 keys

https://backpack.tf/item/2980667563 - 22 keys

Sales at:

12

13 (2x)

14

Would normally exclude 13, given the 5 month unsold at 13, but I feel I’d be excluding too many sales here. 3 of the 4 sales would be excluded. The seller has had theirs listed on marketplace for a fair bit more than 13 keys worth the whole time, so people would have to add the seller to buy it, which is a bit of a deterrent. It’s a similar situation to Johan’s situation, where you’d have to add them or visit their site to trade with them. I will exclude 14 however.

Taking 12-13.