Knives in the case
The Exceedingly Rare Special Item group lists the Bowie Knife, Butterfly Knife, Falchion Knife, Huntsman Knife and Shadow Daggers. Each of these also has its own single-knife case with classic finishes, for example the Operation Breakout Weapon Case for the Butterfly Knife. Here they come only in Chroma finishes: Doppler in several phases, Marble Fade, Tiger Tooth, Damascus Steel, Ultraviolet and Rust Coat.
Collection and related cases
The weapon skins belong to The Spectrum Collection, and every one of them also has a StatTrak™ version. The Spectrum 2 Case lists exactly the same knives and finishes.