Vintage Big Kill
Vintage variant of this item exists not because of the Mannconomy Update, but because there was a bug where people's items would disappear and people would complain to Steam Support and they would get their items back in Vintage quality.
There are around 9 known instances of this item in Vintage quality.
Vintage Professional Killstreak Big Kill
Team Fortress 2 Limited Level 5 Revolver
Killstreaker: Fire Horns
Sheen: Team Shine
Killstreaks Active
Combines style with stopping power. Long exclusive to Freelance Police, now available for other blood-thirsty mercenaries.