HI-E aluminum crank

 I recently ran across these pages ripped out an old cycling magazine, and loved the engineering of the crank. The caption speaks of the pedals, which are unique, but those cranks are funky. I can't really see how it is attached to the spindle. Anyone out there know? Or even better,  have a picture?


There is limited information on Hi-e still on the internet, I guess at some point, someone will invest some time and webspace for a history including pictures, or maybe I am missing the website. Here is a collection of information found on Classic Rendezvous website.