Four Chinese characters (regular script, reading clockwise) Tai Ping Tong Bao / Blank. 22mm, 2.68 grams. Issued in 1008-1016 AD or slightly later. Palembang mint. Not properly studied and seems unpublished.
There are some rare Xian Ping Yuan Bao cash coins, locally produced, found in Palembang, Sumatra (Indonesia). The the Northern Song, Palembang was known as San Fo Chi (for `Sri Vijaya`). The locals (Srivijaya) obtained a permission from the Emperor to cast Chinese model coins (Xian Ping Yuan Bao coins, it seems), form which they paid the Emperor tribute and the Chinese provided protection from the Chola South Indians. these coins probably cannot be called ìmitaitons`since they were issued with the official permission of the Chinese. It probably makes more sense to refer to them as `Sumatra issue Chinese coins`.
This coin is a fine imitation, but is only about half in weight compared to the official issue and is much smaller. Rare and not well-studied.