San Lao Bei was published shortly after May 10th in the 28th year of Jianwu in the Eastern Han Dynasty (AD 52). It has no author's name and its font is between seal script and official script. Now it is hidden in Sanlao Stone Room of Xiling Yinshe, Hangzhou.
When the Sanlao monument was unearthed, it was broken. The existing monument is rectangular, with a height of 9 1 cm and a width of 45 cm. It is damaged on all sides and forms an irregular curve. The inscription is bounded by a border, 23.5 cm high and 36 cm wide. The picture frame is divided into two straight lines on the left and right, and the picture frame on the right is horizontally divided into four pieces, engraved with the names of three generations of grandparents and grandchildren and their death dates. ? In calligraphy, its structure is broad and relaxed, its brushwork is round and simple, its font is square, and its stippling lines are all central strokes, simple and heavy.