六合一統帽

a watermelon rind. The guapi mao started as the taller Liuheyitong mao (六合一統帽) (meaning Six-in-One Unified cap) invented during the Ming Dynasty by the

六合一统'云尔。杨维桢廉夫以方中见太祖，问其制，对曰：'四方平定中。'上喜，令士人皆得戴之。 "唐画〈五代、国朝附〉". 畫史. 其後方有絲絹作掠子掠起髮頂帽，出入不敢使尊者見，既歸於門背取下掠子篦約髮訖乃敢入，恐尊者令免帽見之為大不謹也。 又其後方見用紫羅為無頂頭巾，謂之額子，猶不敢習庶人頭巾。

the Yuan dynasty include the small hat (小帽; xiaomao) or liuheyitong mao (六合一統帽), the dahu. Archeological evidence from the tombs of Ming dynasty princes