Sale 1:

Sold for Neutron Star Vive La France (Mini at 63 below) + 4 keys

http://www.tf2outpost.com/trade/29405061 - B/O of 70

Seller: https://backpack.tf/profiles/76561198128882492#!/compare/1509753600/1509840000

Buyer: https://backpack.tf/profiles/76561198112660684#!/compare/1509753600/1509840000

X = 67

Sale 2:

Sold for Memory Leak Salty Dog (33.5) + Miami Nights Combustible Kabuto (16) + Silver Cyclone Schadenfreude (Mini at 30 below)

http://www.tf2outpost.com/trade/29429843 - B/O of 67

Seller: https://backpack.tf/profiles/76561198112660684#!/compare/1510012800/1510099200

Buyer: https://backpack.tf/profiles/76561198147530243#!/compare/1510012800/1510099200

X = 67 (Capped by B/O)

Sale 3:

Sold for Overclocked Pyromancer’s Mask (Suggestion at 38) + Slumber Tipped Lid (26)

http://www.tf2outpost.com/trade/29448633 - B/O of 65

Seller: https://backpack.tf/profiles/76561198138119811#!/compare/1511395200/1511481600

Buyer: https://backpack.tf/profiles/76561198048334414#!/compare/1511395200/1511481600

X = 64

Sale 4:

Sold for Beams Counterfiet Billycock (34.5) + Neutron Star Noble Nickel (18.5) + Strange Factory New Autumn Wrench (1)

http://www.tf2outpost.com/trade/29400381 - No real B/O, says “can go lower in pure” after stating backpack.tf price.

Seller: https://backpack.tf/profiles/76561198114604882#!/compare/1508025600/1508112000

Buyer: https://backpack.tf/profiles/76561198159593026#!/compare/1508025600/1508112000

X = 54

Sale 5:

Bulk for Ghastly Ghosts Jr. Rotation Sensation

Seller: https://backpack.tf/profiles/76561198048334414#!/compare/1511481600/1511568000

Buyer: https://backpack.tf/profiles/76561198021272428#!/compare/1511481600/1511568000

Sale 6:

Bulk for Peace Sign Chill Chullo

Seller: https://backpack.tf/profiles/76561198147530243#!/compare/1510185600/1510272000

Buyer: https://backpack.tf/profiles/76561198346118738#!/compare/1510185600/1510272000

Sale 7:

Sold with ~10 keys in items for Morning Glory Ground Control

Seller: https://backpack.tf/profiles/76561198169109536#!/compare/1507852800/1508112000

Buyer: https://backpack.tf/profiles/76561198114604882#!/compare/1508025600/1508112000

Can be used on the Ground Control.

Silver Cyclone Schadenfreude:

Sold for 30 keys

Seller: https://backpack.tf/profiles/76561198150783829#!/compare/1512000000/1512086400

Buyer: https://backpack.tf/profiles/76561198432461884#!/compare/1511913600/1512000000

X = 30

Neutron Star Vive La France Mini:

Sold for $125 on Marketplace.tf

https://marketplace.tf/items/30422;5;u107

https://backpack.tf/item/5234339777

125/2 = 62.5

X = 63

Overclocked Pyromancer:

https://backpack.tf/suggestion/5a2cc48d44325a5a896998b0

Sellers:

67 keys:

https://i.imgur.com/EyTQUyu.png - 14 days

Sales at:

54

64

67 (2x)

Going with 54-67.