Thanks rthomas and jnoir for the info. The Nikkors with the numbers gave me an idea of time made and elements. I think what I'll do is make sure the ones I want to keep are good and clear and let the rest of them go to someone that can use them.
I might post in the free,free thread what I don't need.
I have a bunch of others that I don't care for also. Different brands and focal lengths.