Quilon Syrian copper plates

The Kollam (Quilon) Syrian copper plates, also known as the Kollam Tarisappalli copper plates, or Kottayam inscription of Sthanu Ravi, or Tabula Quilonensis (c. 849 CE) are a copper plate grant issued by Ayyan Adikal, the chieftain of Kollam, conferring privileges upon a Syrian Christian merchant named Maruvan Sapir Iso, in the name of the Tarissapalli (the Christian church) in Kollam, located on the Malabar Coast of southern India.

Source: Wikipedia — Quilon Syrian copper plates (CC BY-SA 4.0)