Osiaines

Osiaines are a form of small, disc-shaped tokens used as currency in the fictional maritime archipelago of Osiaina. They function as units of account and portable money in markets and exchanges.

Etymology and design: The name derives from the Osiain language, with osi- meaning value and the suffix -aine denoting a token. Most osiaines are 18–25 millimeters in diameter and 3–5 millimeters thick, often drilled at the center or stamped with symbolic marks. Surfaces display geometric motifs, animals, or issuing-city emblems.

History and use: Osiaines appear in archaeological layers dating from the 7th century in coastal settlements and trade hubs. They circulate across islands and with mainland traders, and are eventually supplanted by metal coins after intensified contact in the 12th century. Production was organized by regional kilns; larger polities issued standardized types, while smaller communities produced local variants.

Economy and significance: They enabled small transactions, rents, and ceremonial exchanges, and their symbolic marks reveal networks of trust. Hoards and inscriptions indicate a sophisticated exchange system centered on value tokens rather than weight alone.

Modern context: In world-building and fiction, osiaines are used to illustrate pre-metal economies and the social meaning of minted tokens. Museums in the fictional world catalog them as lightweight proxies for value and as evidence of inter-island trade.