These fields are used in exactly the same way as fields 440 and #464, but relate not to the actual edition being described, but to the edition of which it is a reproduction. This information is invaluable to the study of pre-modern printing, especially the names of publishers contained in #640.
#600 影印光緒丁亥[1887]五福堂刊本
#640 五福堂|d1887|9wu fu tang
#600 影印清同治中杭州昭慶寺刊本
#640 昭慶寺|p杭州|d同治|9zhao qing si
#600 影印日本內閣文庫藏明清繪齋集雅齋刊本
#640 清繪齋|d明|9qing hui zhai
#640a集雅齋|d明|9ji ya zhai
#600 影印《玉函山房輯佚書》本
#646 玉函山房輯佚書|9yu han shan fang ji yi shu
#600 影印萬曆二十年[1592]刊《漢魏叢書》本
#646 漢魏叢書|d1592|9han wei cong shu
#600 影印掃葉山房石印《清人說薈二編》本
#640 掃葉山房|9sao ye shan fang
#646 清人說薈二編|9qing ren shuo hui er bian
#600 影印同治十二年[1873]粵東書局刊《古經解彙函》本
#640 粵東書局|d1873|9yue dong shu ju
#646 古經解彙函|d1873|9gu jing jie hui han