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Jyutping haak1 jan3
Pinyin hēi yìn

Definitions (粵典–words.hk)
  1. 名詞、舊式、香港
    永久​居民​身份​證​,​1972​年​至​1983​年間​發行
    Hong Kong identity card for permanent residents, issued from 1972 to 1983; black stampers

[--]

Jyutping hak1 jan3
Pinyin hēi yìn

Definitions (粵典–words.hk)
  1. 名詞、舊式、香港
    永久​居民​身份​證​,​1972​年​至​1983​年間​發行
    Hong Kong identity card for permanent residents, issued from 1972 to 1983; black stampers