Limbu Question Mark

It marks a question in Limbu writing.

A 2002 encoding proposal calls ᥅ ordinary question punctuation and identifies Devanagari double danda (॥) as Limbu's main sentence-ending mark. It reports Limbu writing in general use in Nepal, Sikkim, and Darjeeling, and notes this question-mark shape especially in Sikkimese typography and mixed-script documents.

The script is traditionally credited to a figure named Sirijanga. The oldest known Limbu-script writings were collected in the 1850s; development of the modern script began in 1925, and its current form has been used since the 1970s.