Text, meaning, and application

What is the distinction between «اسْمُهُ» and «رَسْمُهُ»?

Caution During Trials, Preservation of Knowledge, and Inner Sincerity (Reports 7–11)

• Both refer only to age
• The first is script and second is name
• The first is name; the second the outward written form
• Both are imperative verbs