Unknown builds, I need your help!

I love unknown, rare and weird amps, effects and instruments. And as I put them online (with pics, schematics and more) I still search for the origins of these units. Where did they came from? Who build them? And why did they make it the way they did?

I decided to make a page to collect all these unknown units and hope you can help me to add names to the pedals, amps or instruments.

Unknown – ’70 / ’80’s Pedalboard

I got this pedalboard a while ago and am still searching for the builder / owner etc. Filled with vintage EHX and Colorsound pedals.

Unknown – Sloped fuzz pedal

I got this pedal in for some TLC. No builder or marks in or outside the pedal. Origins?

Unknown – HENK pedal

I got this pedal in for some TLC and removed the treadle effect for a more common pedal features. Still the owner is unknown, maybe called Henk (common Dutch name)

Unknown – Fuzz? Overdrive?

This pedal came in for some TLC. The article is a great read on designing pedals. Still wondering who build it….