从朋友的来信中,我最近获得谢文光老先生发明的鈖丝隔王板的制造法了。这种方法很简单,每一位同志都能仿造,并且经济,所用的工具如果自制只花一、二角钱买木块就行;若委托刻字铺雕刻,也不过花一元左右。这套器具可 From a friend ’s letter, I recently got the manufacturing method of the bingo board invented by Mr. Xie Wenguang. This method is very simple, every comrade can imitate, and the economy, the tools used if you only spend one or two dollars to buy wooden blocks on the line; if commissioned carving lettering shop, but also spend a dollar or so. This set of equipment can be