[zinekeller]

Since that Unicode didn't exist back then, maybe a table of Hanja? (Also since it mentioned Ueda I guess it originally meant Japanese Kanji repurposed by the US for standardisation.)

[kevin_thibedeau]

It's a Japanese dictionary where characters can be referenced by an index number:

https://www.amazon.com/Uedas-Daijiten-Dictionary-Characters-...