Based on the Black Arts Pharaoh Fuzz, this is our Lab Series #20.
This Fuzz, in a standard sized 125B enclosure, is based on the vintage Big Muff. This is a total tone control machine for Fuzz-Head. With the GE-Si toggle, select which clipping you prefer. There's also a Hi/Lo clipping mode.
Link to the production model : Toutânpinotte Fuzz.