This is also a nice exhibit of print archaeology. They were both printed on
IBM Selectric ("golf ball") typewriters, the first in
Letter Gothic typeface and the second in
Courier. Both were fixed pitch typefaces (an "m" or "w" took up the same line spacing as an "l" or an "i").
I owned one of these machines many years ago. Its most interesting font was
Orator, in which characters were still 12 point in width but the upper case capitals were almost 50% taller. Although I can find no current confirmation on the web, we were told that it was designed specifically for President Eisenhower, who like most people of his age was long-sighted.
In sections of his speeches where he wanted to briefly take off his glasses and appear spontaneous, text was typed in Orator capitals. I used it for typing presentation cells that were subsequently copied onto plastic film for overhead projector slides for courses I gave.
Anyway, back to the OP: