In this symbol the adjective fine is combined with a point of light. A point of light indicates that something is true. Thus, the point of light gives us the adjective genuine, and this symbol
translates as truly fine or genuine fine.
Illustrative Text Reference:
Banawali: Pottery Graffiti (The pottery is cracked. It may be part of a plate or a lid.): B-28 A: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page
348: Collections in India: Suomalainen Tiedeakatemia.