《宋书·志·卷十八》
陛下甲仆射主事吏将骑、廷卜五牛旗假使虎贲，如果在陛侧侍卫及在皇帝出行仪仗队之中，身穿锦文衣，戴武冠，冠上加双朗尾。
陛下甲仆射主事吏将骑、廷上五牛旗假使虎贲，在陛列及备卤簿，服锦文衣，武冠，鹖尾。
When the emperor is accompanied by the guards on the side of the emperor and in the emperor's travelling procession, he wears a brocade single coat, a military cap with a double swallowtail on it.