Read this strip at gocomics.com.
Schulz uses a few different styles of large-form lettering, and we can see them all here in close proximity. We find outlined and filled in examples of:
serif:
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| serif-ed |
 |
| sharp-cornered (in the M) |
 |
| square-cornered |
 |
| rounded simulated pen strokes 1 |
 |
| rounded simulated pen strokes2 |
