It's wonderful how sometimes a page of mere handwriting can be beautiful in and of itself. Some examples can be found in this manuscript of letters from Cicero (so I gather), made in Italy in the early 1400s.
I especially liked the right-hand side of ff. 155v-156. Here I am using my usual standards of "has a (desirable) physical impact on me" and "makes me feel peaceful" in saying that I find it beautiful.