90% FULL HEAD = 90-H or 90FH
On the obverse of the Standing Liberty Quarter the coin must exhibit 90% of the Liberty’s Head and Hair braids must be visible. Weakness will be exhibited between the hair braids and the right cheekbone of Liberty’s head. The coin must exhibit 90% of a full head. Whether or not a coin exhibits this depends on the striking pressure the dies were set to when the coin was struck.