The real Halloween Fire

https://backpack.tf/item/6816716696

Sale 1) Sold for something on SCM

https://backpack.tf/profiles/76561197992659090#!/compare/1539129600/1539216000

https://backpack.tf/item/6215130809

Sale 2) Sold for a Disco Beat Down Ground Control (32 Keys)

https://backpack.tf/profiles/76561198105071091#!/compare/1538611200/1538697600

Sale 3) Sold for a Death at Dusk Dead Cone

https://backpack.tf/profiles/76561198093257083#!/compare/1538697600/1538784000

This will be used there.

Sale 4) Sold + Duped Searing Plasma Hottie's Hoodie for a Hellish Inferno Pool Party

https://backpack.tf/profiles/76561198119658844#!/compare/1539388800/1539475200

No...

Sale 5) Sold for 44 Keys

https://backpack.tf/profiles/76561198125791160#!/compare/1539734400/1539820800

Also no...

Sale 6) ?

https://backpack.tf/profiles/76561198093257083#!/compare/1538697600/1538784000

https://backpack.tf/profiles/76561198151561701#!/compare/1541548800/1541635200

Sale 7) Sold for $68.51 when Keys were ~$2.27 each

https://steamcommunity.com/market/listings/440/Unusual%20Professional%20Killstreak%20Forest%20Fire%20Flame%20Thrower%20%28Well-Worn%29

68.51 / 2.27 = 30.18, which rounds to 30 Keys