#7SC, #7SD, #7SN

These fields (often without #7SN) always appear in their own, discrete record, and none of them is repeatable.

The three-digit siku code is entered into field #7SC, and the textual form goes into field #7SD. Explanations and notes on the subject go into #7SN.

Examples

#7SC 462
#7SD 史部 -- 金石類 -- 分刻

#7SC 540
#7SD 子部 -- 農家類

#7SC 563
#7SD 子部 -- 天文算法類 -- 推步 -- 時憲書
#7SN Official government publications containing the single-leaf diagram 年神方位之圖 followed by day-columns for each month. Translated as "calendars".