《明史·志·卷四十二》
洪武年问旧样式，日、月图案直径五寸，下裳前后连缀如同帷幕，六种图纹用刺绣。
洪武间旧制，日月径五寸，裳前后连属如帷，六章用绣。
According to the old formats in Hongwu era, sun and moon patterns were five inches in diameter, patterns on both the front and the back of bottom dress were connected like a curtain, six patterns were embroidered.