Octagonal coin, unread unknown inscriptions. 16mm, 0.60 grams. cf. Zeno 308481 (same type)

This type is similar in style to the tin pitis of Sultan Anom Sri Ingalaga (1742-1783) of Jambi Sultanate (in Sumatra, modern Indonesia) (cf.  HCM# 177-181) but the inscriptions are different. Interesting and unresearched type.