Not sure why you say manual focus lenses won't meter unless that is a Nikon restriction (I am a Canon user). Also, focusing screens are focusing screens. I have never heard of one 'optimized for autofocus'. Are you possibly referring to a manual aperture ? Although a manual aperture will potentially result in trying to focus while stopped down, this is easy remedied by focusing wide open and stopping down for the shot. Can be less than optimal for sports and movement but certainly doable with practice.

For sports and fast movement, I have always found manual focus to be far more desirable than auto focus since it is usually faster if you have some experience doing it. Learning to track moving subjects and being able to rack focus while doing it will almost always give better results when I am shooting in burst mode.

Well, that information can often be researched. Out of the four vehicles that I own / have owned in the USA I know exactly which factories they were built in from the vehicle ID codes. That information is available online, although it may take a bit of research to track it down. That can also be true for cameras and lenses, at least in some cases. If it is important to you, you could start with serial numbers and see where the bread crumbs lead you.

Can you explain why it is important to you, beyond that you just wish to know? My wife deals in antique jewelry, and knowing where something was made, and by whom is frequently important as it can have a significant impact upon the value. Identifying hallmarks, maker's marks, and also understanding the context of jewelry manufacture through the ages and around the world is a non trivial exercise, but as a dealer she needs to understand those things. What is your reason for wishing to know?

Interesting. This is the second time you have asked this question. Why do you wish to know and what specific information are you looking for?

So my Zenit E came from Russia. Do you want to know what factory it was manufactured in? Do you want to know where I bought it or how I acquired it? Do you want to know where it has resided during its life? Where it is now, or where the photographs were captured?

Sometimes a detailed analysis of the serial numbers can provide the manufacturing factory information and other interesting stuff, but I continue to be bemused about your reason for asking the question about the camera.