The flags section is followed by the descriptive text for the history file. This section is intended to contain text which might contain a copyright statement, or might indicate the purpose of a file or contain special instructions, and so on. This section starts with a ‘^At’ control line and is terminated with a ‘^AT’ control line:-
^At
This is the blah blah...
... blah.
^AT
The ‘^AT’ control line marks the end of the sccs file's header. The following line is the first line of the file body.