This author found a piece of calligraphy sent to Adam Schall from Wang Duo (1593-1652), a renowned calligrapher in the late Ming, at the library of Theology College at Fu-jen University.

• 笔者在辅仁大学神学院发现一题为王铎(1593-1652)赠汤若望诗翰的条幅，经考证后证实此并非王氏的真迹，而是陈垣向友人叶恭绰商借得原件后，用向搨的方式摹写出的。