Sale 1:

Sold for Orbiting Planets Magnificent Mongolian

https://i.imgur.com/Riueu0w.png - B/O of ~6.36 keys

Seller: https://backpack.tf/profiles/76561198048851745#!/compare/1524182400/1524268800

Buyer: https://backpack.tf/profiles/76561198385138732#!/compare/1524096000/1524268800

Easily caps.

X = 6.5 (Capped by B/O, rounded)

Sale 2:

Sold for 6 keys + 10 ref

Seller: https://backpack.tf/profiles/76561198386441509#!/compare/1523232000/1523318400

Buyer: https://backpack.tf/profiles/76561198267448829#!/compare/1523232000/1523404800

Bot.tf confirms: https://i.imgur.com/Q0I3HRc.png

X = 6.5

Sales 3 & 4:

Bot.tf sales at 6 keys and 5 keys + 15 ref

https://i.imgur.com/Q0I3HRc.png

https://backpack.tf/profiles/76561198308819102#!/compare/1522713600/1522800000

https://backpack.tf/profiles/76561198423257359#!/compare/1522281600/1523318400

https://backpack.tf/item/5925583467 - pretty sure this is one of the sales, but the real buyer probably didn’t have their backpack scanned when they acquired the item, because the “buyer” I linked here shows they got it from the SCM.

Couldn’t find the other one.

X = 6

X = 5.5

Sale 5:

Bulk for Green Confetti Industrial Festivizer

Seller: https://backpack.tf/profiles/76561198122572748#!/compare/1524182400/1524268800

Buyer: https://backpack.tf/profiles/76561198250030346#!/compare/1524009600/1524268800

Sale 6:

Bulk for Purple Energy Rotation Sensation

Seller: https://backpack.tf/profiles/76561198169109536#!/compare/1523059200/1523318400

Buyer: https://backpack.tf/profiles/76561198232041512#!/compare/1523232000/1523318400

Sellers:

~6.36 keys:

https://i.imgur.com/cDRmZ33.png

https://backpack.tf/item/6399861305

7 keys:

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

https://backpack.tf/item/4959879563

12 keys:

http://www.tf2outpost.com/trade/29626559

Sales at:

5.5

6

6.5 (2x)

Going with 5.5-6.5.