The Sale:

Sold for Massed Flies Coupe (Mini at 12 below) + Dead Presidents Tyrantium Helmet (Suggestion at 12.5) + 5 keys + 5 ref through an auction

Seller: https://backpack.tf/profiles/76561198393588133#!/compare/1550016000/1550102400

Buyer: https://backpack.tf/profiles/76561198292156436#!/compare/1549843200/1550016000

https://backpack.tf/item/6792656187

X = 30

Other Sales:

https://backpack.tf/item/6792656187 (#1 & #2)

#1

Sold with keys for Purple Energy Climbing Commander

https://backpack.tf/profiles/76561198292156436#!/compare/1550534400/1550707200

https://backpack.tf/profiles/76561198022589417#!/compare/1550620800/1550707200

#2

Bulk

https://backpack.tf/profiles/76561198022589417#!/compare/1550707200/1550793600

https://backpack.tf/profiles/76561198227232564#!/compare/1550707200/1550793600

Dead Presidents Tyrantium Helmet:

https://backpack.tf/suggestion/5c74e89b6780721872578bfd

Massed Flies Coupe Mini:

Marketplace Sales:

https://marketplace.tf/items/330;5;u12

https://manic.tf/keyprice/?at=2018-12-23 - $24.76 / $1.7 = 14.56 keys

https://manic.tf/keyprice/?at=2019-02-11 - $23.29 / $1.79 = 13.01 keys

X = 15

X = 13

Other Sales:

https://backpack.tf/item/3819762066 (#1)

https://backpack.tf/item/236324070 - scammers

#1

Untraceable

https://backpack.tf/profiles/76561198140786695#!/compare/1549756800/1549843200

https://backpack.tf/profiles/76561198292156436#!/compare/1549756800/1549843200

#2

Bulk for Purple Confetti Deep Cover Operator

https://backpack.tf/profiles/76561198292156436#!/compare/1549843200/1550016000

https://backpack.tf/profiles/76561198393588133#!/compare/1550016000/1550102400

Unsold for a couple days at 11 keys:

https://i.imgur.com/doX3qd3.png

https://backpack.tf/item/3819762066

15 is a bit too far away from the unsold for my liking. Excluding 15, keeping 13. Taking 11-13 (12)

Sales at:

30

No current sellers.

Going with 30 flat.