interesting viewfinder

[Phil_F_NM]

Searching ebay for a replacement of my 28mm Kobalux, I just saw that there is a 35mm Avenon finder up for sale right now. I've never seen, nor heard of such an animal. That said, was there a possibly rarer-than-hens-teeth 35mm lens by Avenon? (I have no affiliation with the seller, just curiosity. That and I really wish I never sold that Kobalux 28mm...)

Phil Forrest