5 minutes into the movie they are placing the time capsule in the ground - the cover design - is like the Earth with latitude lines, but there is writing - I can't read and there is a shield design - what is that shield design meaning?

A P is in the top left corner of the shield - an S is in the bottom right corner of the shield - the top right of the shield, looks like it has 3 stars with some writing under it and then the bottom left of the shield, I can't make out what it is.

The school name is William Dawes - Elementary School
WDES