Sale 1: Use There.

https://backpack.tf/profiles/76561198271964074#!/compare/1559606400/1559692800

https://backpack.tf/profiles/76561198280357510#!/compare/1559606400/1559692800

Sale 2: ~39 Keys.

Sold For Head of Steam Hephaistos' Handcraft (13) + 26 Keys Pure = 39 keys.

https://backpack.tf/profiles/76561198280357510#!/compare/1559779200/1559865600

https://backpack.tf/profiles/76561198869144080#!/compare/1559779200/1559865600

Head of Steam Hephaistos' Handcraft's Mini:

https://backpack.tf/suggestion/5d0bc5476780723c892bff7c

Sale 3: Bulk.

https://backpack.tf/profiles/76561198321469504#!/compare/1555977600/1556064000

https://backpack.tf/profiles/76561198054198170#!/compare/1555977600/1556064000

Sale 4: Use There.

https://backpack.tf/profiles/76561198054198170#!/compare/1557619200/1557792000

https://backpack.tf/profiles/76561198178638591#!/compare/1557705600/1557792000

Sale 5: ~28 Keys.

Sold With 1 Key In Sweets For Duped Orbiting Fire Le Party Phantom (29)

https://backpack.tf/profiles/76561198178638591#!/compare/1560556800/1560729600

https://backpack.tf/profiles/76561198089711811#!/compare/1560643200/1560729600

Duped Orbiting Fire Le Party Phantom's mini:

~29 Keys.

Sold For 28 keys pure + 1 key in mixed = 29 keys.

https://backpack.tf/profiles/76561198061275415#!/compare/1560643200/1560729600

Sale 6: Untrace.

https://backpack.tf/profiles/76561198089711811#!/compare/1560988800/1561075200

https://backpack.tf/profiles/76561198080179568#!/compare/1560988800/1561075200

Sale 7: ~30 Keys Pure.

https://backpack.tf/profiles/76561198080179568#!/compare/1561075200/1561161600 -- ID --> 7864738936

https://backpack.tf/profiles/76561198307786202#!/compare/1561075200/1561334400

Sales: 28/30/39

Going with 28-39 keys.

Thanks to scourge for the premium!