数字

[archlords]

So in my dictionary that allows me to look things up, there are listed numerals "used in legal documents," examples compared to their usual forms below:

①②③⑤⑥⑨⑩
一二三五六九十
壱弐参伍陸玖拾

I've left out 0, 4, 7, and 8 because they don't seem to have any similar listings in the dictionary. So does this mean there is no "formal" version of these?

Other Sources:

The covers of the DVD boxes for Samurai Champloo use the unusual numerals where applicable and normal ones otherwise as far as I can tell, except that they use 「六」 instead of 「陸」.

The same is true for Kaiketsu Jôki Tanteidan (the original version), where they are visible in the backgrounds of the covers (Figs. 1–3). Again, the normal "6" is used.

RuroKen introduces the Kuzuryûsen (Fig. 4), which gives a character for each of the nine strokes, including the ones (other than "0") that supposedly didn't have special numbers.

④⑦⑧
四七八
？漆捌

(I can't figure out how to type the "4" because it doesn't seem to be listed for its reading "shi" with the IME, and I can't remember its other reading[s]. See Fig. 4 below for a somewhat fuzzy depiction.) I looked up the new characters in two dictionaries (including the one above), and none of them said anything about numbers. They do have the right readings, at least, except 「漆」 (which is shitsu instead of shichi). Did Watsuki just make this usage up?











Fig. 1
Fig. 2
Fig. 3
Fig. 4