My research indicates it’s a knockoff, so there’s a good chance we can find the original. Got a sample?

Here is an image of it

Yep. Looks like good ol’ Helvetica to me.

Actually, it looks more like Neue Helvetica. Also, I’ve seen that a with the flat right side numerous times in corporate identities, maybe this is a customised Neue Helvetica? Just throwing it out there...

There is a story about the Olnova here. Another font forgery story. No shortage of these.