Sale 1:

Sold for 18 keys (last 18 keys in the group of 53 items in the seller’s end)

Seller: https://backpack.tf/profiles/76561198002757046#!/compare/1544486400/1544572800

Buyer: https://backpack.tf/profiles/76561198002186909#!/compare/1544400000/1544486400

https://backpack.tf/item/937378135

X = 18

Sale 2:

Quicksold for 16 keys + ~1 key in ref

Seller: https://backpack.tf/profiles/76561198070705963#!/compare/1544486400/1544572800

Buyer: https://backpack.tf/profiles/76561198351184262#!/compare/1544400000/1544486400

https://backpack.tf/item/2922704570

X = 17

Other Sales:

https://backpack.tf/item/2922704570 (#1)

#1

Bulk for purple Energy Antarctic Eyewear

https://backpack.tf/profiles/76561198089808211#!/compare/1544400000/1544486400

https://backpack.tf/profiles/76561198070705963#!/compare/1544400000/1544486400

Sellers:

https://i.imgur.com/UlzHT76.png

https://backpack.tf/item/5616008104 - 25 keys

Sales at:

17

18

Another seller on marketplace for ~$38.50, which’ll end up at around 21 keys.

17 quicksold, excluding 17.

Going with 18 flat.