汉私印“许中信”(图1)是印史上千古无二的奇品。它的奇妙在于章法上“天平式”的格局,“中”是一个支架两个托盘,“许”“信”同形分别是两个砝码,印面对称均衡。这方游戏之作让人回味无穷,其中作者对“许”“信”同形对称处理可称机敏。汉字千变万化,入印篆书又可以做各种变通,故而印面中出现两处或几处字形、笔 Han private printing “Xu CITIC ” (Figure 1) is the history of the eternal strange goods. Its wonderful lies in the constitution “balance ” pattern, “in ” is a bracket two pallets, “Xu ” “Letter ” is the same shape are two weights, printed symmetry balance. This game makes people memorable, of which the author of “Xu ” “letter ” isosymmetric handling can be said to be alert. The ever-changing Chinese characters, seal script can be printed into a variety of modifications, so there are two or more printed surface glyphs, pen