Noto Sans Indic Siyaq Numbers
Google Fonts · Google · 2020

A single-weight font dedicated to Indic Siyaq numerals, a rare historical accounting notation with extremely narrow scholarly application.
About
Noto Sans Indic Siyaq Numbers addresses one of the most specialised Unicode blocks, covering a numeral system used in historical South Asian financial and administrative records. Its audience is limited almost entirely to palaeographers, archivists, and digital humanities researchers. The font demonstrates the Noto project's exhaustive approach to Unicode coverage, however niche the requirement.
Classification
Provides Unicode support for Indic Siyaq Numbers, a specialised numeral system used historically in accounting across the Indian subcontinent. Single-weight, highly specialised.