It was used to pronounce the important issues the emperor did not sign, but put a date on a draft (Gokakujitsu) and then pass on the final draft (Gokakuka).
重要事項の宣告に用いられ、天皇は署名せず、草案に日付を書き（御画日）、成案に可の字を書いた（御画可）。