Ink on paper. Calligraphy couplets. Hanging scroll. Cursive script. Signed Yu Youren and with a dedication, with a seal mark of the artist.
釋文：吃得苦中苦，不为人上人。樹平先生正。于右任。 來源: 洛杉磯本地老華僑家藏Provenance: Private collection, Los Angeles
