Má Gé 麻革 (zì Xìnzhī 信之; mid-13th c.) of Wángguān 王官 wrote the guǐmǎo = 1243 preface to 王好古 Wáng Hǎogǔ’s Yīnzhèng lüèlì (KR3eh045); the dated preface fixes the work’s date of composition.