So many cool bikes posted to this thread already, a lot of stuff I've never seen.

Since I bought both examples of this French marque that I ever came across, I'll assume it's a both rare and obscure one.

The "normal"-looking one is actually brazed from carbon-lined steel tubing having .2mm-walled center sections, and has triathlon geometry. I added the longer stem so as to fit myself to it.

The Aero bike is quite forward-thinking for it's early-80's birth date, crafted of very thin steel sheet, even the "fender" structure is a closed-section (hollow) bronze-weldment. And the chainrings are wildly oval, working approximately 90-degrees out of phase compared to the BioPace orientation.

Behold the creations of Edmund Polchlopek: