綠印 [绿－]

Jyutping luk6 jan3
Pinyin lǜ yìn

Definitions (CC-CANTO)
  1. green-stamp (non-permanent resident status in Hong Kong)
Definitions (粵典–words.hk)
  1. 名詞、舊式、香港
    臨時​香港​居民​身份​證​，​1972​年​至​1983​年間​發行
    Hong Kong identity card for non-permanent residents, issued from 1972 to 1983; green stampers