unclassified
katakana repetition mark
A typographic symbol used in vertical Japanese text to repeat the preceding katakana character. Equivalent to 一の字点 (いちのじてん).
See also: 一の字点
縦書きのカタカナ文では、「ハヽ」と書いて「ハハ」と読む。
In vertical katakana writing, 'ハヽ' is written and read as 'ハハ'.