https://omniglot.com/writing/lepcha.htm
Lepcha language and script
Lepcha is a Tibeto-Burman language spoken in India, Nepal and Bhutan by about 66,730 people.
language and script
https://openresearch-repository.anu.edu.au/items/b0a533d2-f594-4165-9f46-27eb2dab874a
Your word against mine: How a rebel language and script of the Philippines was created, suppressed,...
When news of an uncontacted ‘lost tribe’ began emanating from the island of Bohol in the southern Philippines, visitors were fascinated by the group’s unique...
language and script
https://omniglot.com/writing/luwian.htm
Luwian language and script
Luwian was Anatolian language spoken in Anatolia and Northern Syria until about 600 BC, and written with hieroglyphic and cuneiform scripts.
language and script