印章作为艺术品,其价值一般表现在两个方面:一是其外形设计,也就是印钮的设计、铸造技艺及后期更高层次的深加工技艺。二是印面文字的书法和镌刻艺术。印钮的设计最初以实用为主,用于穿绶带系于腰间,如瓦钮、鼻钮等。现将我国古代的主要印钮形态分列如下:龟钮:龟钮也是官印中最常见的钮制。龟与蛇结合称之为玄武,玄武是人格神,演化成赫赫有名的真武大帝。此外,龟与贵同音,是长寿吉祥的象征。蛇钮:蛇钮不多见,但颁给滇王的印章采用蛇钮。羊钮、马钮、兔钮有颁发给其他民族首领的记载。 Seal as a work of art, its value is generally manifested in two aspects: First, its shape design, that is, the button design, casting techniques and later higher level of deep processing skills. Second, the surface text of the calligraphy and engraving art. The design of the button is mainly practical at the first, used to wear a ribbon tied at the waist, such as tile button, nose button and so on. Now our ancient main Indian button morphology are as follows: Turtle button: turtle button is also the official seal in the most common button system. Turtle and snake called the basaltic, basalt is the personality of God, evolved into the famous real Wudi. In addition, turtles and your homonym, is a symbol of longevity auspicious. Snake button: snake button is rare, but the stamp issued to the king of Yunnan Snake button. Sheep button, horse button, rabbit button has been issued to other ethnic leaders record.