THAILAND: LANNATHAI: AR tamlung (64.51g), 14th to 16th century, Mitch-2756-57, Krisadaolarn & Mihailovs-B26, "chiang" ingot coinage issued by Chiang Saen principality, stamped with sen (for Chiang Saen), "4" (1 tamlung = 4 baht) and issue mark on each half, VF.
Estimate: 100-150 USD