Like T stated, the second one has issues. I'm not convinced by it , in fact, I'd be hard pressed to believe that TM signed that at any stage in his career. The elements are internally anachronistic, one element does not go with another internally, it's a goulash.
The first one is a textbook, late TM signature, but I'm bothered by just how neat, how carefully this is written, especially on material. The pressure is perfectly consistent, the baseline and skyline never break perfect symmetry; just when did Munson sign anything with Emily Post standing over his shoulder and guiding his hand?
The first one is not really a "late" signature. It resembles more the early 70's. I've seen many signed like this. But his later ones, having that oversized "a" in Thurman, are typically more abbreviated and messier. here is an example for a 72 team ball. I used to own a very nice 72 ball, and it also was signed in this manner.