If it's from 1958 it's hand lettered.

oh ok. I'm not a type expert but wouldn't they have based it off of something? I mean it looks like the weight of the letters is very precise?

I mean it looks like the weight of the letters is very precise?

It is, because the person who drew them was skilled with the brush or pen that they were drawn with. They might have based it on a model in a book of script alphabets, which would also have been drawn by hand.