Gravure Technique (art) Typologie (archéologie) Animal Thèmes, Motifs Xǔchāng Hàn huàxiàng shí pù shǒu xián huán túxiàng yánjiū 许昌汉画像石铺首衔环图像研究 = A Study of the Animal-and-ring-shaped Door-knockers Carved on Han Period Pictorial Stones from Xuchang