Sale 1:

Sold for 29 keys + ~1 key in metal (Buyer’s end)

Seller: https://backpack.tf/profiles/76561198388209882#!/compare/1551571200/1551744000

Buyer: https://backpack.tf/profiles/76561198158748076#!/compare/1551657600/1551744000

https://backpack.tf/item/5904128537

X = 30

Sale 2:

Sold for 27 keys + ~2 keys in items

Seller: https://backpack.tf/profiles/76561198112281935#!/compare/1555545600/1555632000

Buyer: https://backpack.tf/profiles/76561198180461089#!/compare/1555545600/1555632000

https://backpack.tf/item/7427385946

X = 29

Sale 3:

Sold for 26 keys + ~1 key in metal

Seller: https://backpack.tf/profiles/76561198180461089#!/compare/1555632000/1555891200

Buyer: https://backpack.tf/profiles/76561198027152204#!/compare/1555718400/1555891200

https://backpack.tf/item/7427385946

X = 27

Sale 4:

Sold for Planets Anger + Collector’s Pro. KS Fortified Compound

Seller: https://backpack.tf/profiles/76561198154211785#!/compare/1554422400/1554508800

Buyer: https://backpack.tf/profiles/76561198078285016#!/compare/1554422400/1554508800

https://backpack.tf/item/6150534229

Gonna be way too high without a B/O cap, excluding.

Sale 5:

Sold with 3 keys for Scorching Handle

Seller: https://backpack.tf/profiles/76561198269636307#!/compare/1555804800/1555891200

Buyer: https://backpack.tf/profiles/76561198072164101#!/compare/1555718400/1555891200

https://backpack.tf/item/6150534229

https://bot.tf/stats/listings/MX5GQND4 - B/O of 38

Seems too high to be used here, and too low to be used on the Handle. Excluding this sale.

Other Sales:

https://backpack.tf/item/5904128537 (#1-4)

https://backpack.tf/item/6150534229 (#5-10)

https://backpack.tf/item/7427385946 (#11, rest are gambling)

#1

Sold with 11 keys for Ancient Eldritch Neptune’s Nightmare

https://backpack.tf/profiles/76561198105071091#!/compare/1550448000/1550534400

https://backpack.tf/profiles/76561198099685235#!/compare/1550361600/1550534400

Should be used on the Nightmare.

#2

Untraceable, Scorching Big Chief was involved

https://backpack.tf/profiles/76561198099685235#!/compare/1550361600/1550534400

https://backpack.tf/profiles/76561198268140274#!/compare/1540944000/1550534400

#3

Bulk for Beams Glengarry

https://backpack.tf/profiles/76561198268140274#!/compare/1550534400/1550620800

https://backpack.tf/profiles/76561198121830870#!/compare/1550534400/1550620800

#4

Transferred to bot?

https://backpack.tf/profiles/76561198121830870#!/compare/1550620800/1550707200

https://backpack.tf/profiles/76561198388209882#!/compare/1550620800/1550707200

#5

Bulk for stuff

https://backpack.tf/profiles/76561198078285016#!/compare/1554768000/1555200000

https://backpack.tf/profiles/76561198046921199#!/compare/1555113600/1555200000

#6

Untraceable, some keys match.

https://backpack.tf/profiles/76561198046921199#!/compare/1555286400/1555372800

https://backpack.tf/profiles/76561198108094239#!/compare/1555286400/1555372800

Rest of the keys were probably spent on the tyrannus.

#7

Sold with 5 keys for Purple Energy Titanium Pillar

https://backpack.tf/profiles/76561198108094239#!/compare/1555372800/1555459200

https://backpack.tf/profiles/76561198047819527#!/compare/1555372800/1555459200

#8

Bulk for Spellbound Burg

https://backpack.tf/profiles/76561198047819527#!/compare/1555545600/1555632000

https://backpack.tf/profiles/76561198269636307#!/compare/1555545600/1555632000

#9

Bulk for Ghosts Brotherhood

https://backpack.tf/profiles/76561198072164101#!/compare/1557446400/1557619200

https://backpack.tf/profiles/76561198252999692#!/compare/1557532800/1557619200

#10

Bulk for Purple Energy KE. Using on the KE.

https://backpack.tf/profiles/76561198252999692#!/compare/1557532800/1557619200

https://backpack.tf/profiles/76561198043662502#!/compare/1557705600/1557792000

Buyer dumped their stuff in a bot afterwards.

#11

Untraceable

https://backpack.tf/profiles/76561198081793950#!/compare/1556928000/1557014400

https://backpack.tf/profiles/76561198035645252#!/compare/1556928000/1557014400

Sellers:

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

https://backpack.tf/item/6150534229 - 31 keys

https://backpack.tf/item/6014138650 - 50 keys

Sales at:

27

29

30

Going with 27-30.