詹景炎 Zhān Jǐngyán Zhān Jǐngyán 詹景炎 (hào Gǔ Lè 古扐), Qīng-dynasty Dàoguāng-era figure who at age 82 wrote the 1836 preface to the Zhēnjiǔ shénshū 針灸神書 (KR3ee004) attributed to 瓊瑤真人 Qióngyáo zhēnrén. Otherwise unidentified.