02Pilot
Malcontent
Well, I couldn't help myself and bought a Canon 50/3.5. Canonrangefinder.com seems to be still down, and even the Internet Archive version isn't working, so I can't identify which version it is (beauty ring is marked "Canon Lens f:3.5 50mm Canon Camera Co. Japan No.18504). It's a really nice shape and I hope to have some test samples soon. Thanks again for the feedback received here earlier.