Ceitil - João III Group 6 - Castle with low wall, with or without door, all towers far from the wall

The ceitil was Portugal's smallest denomination throughout the Age of Exploration, and João III's reign saw enormous quantities struck to meet demand from both domestic commerce and Atlantic trade routes — Ceuta, from which the coin almost certainly takes its name, had long established the type's practical role in low-value exchange across Portuguese-controlled ports. The Group 6 classification distinguishes this emission by the castle's low curtain wall configuration, a die characteristic Gomes used to sequence the type's likely chronological progression through the 1530s.

João III struck ceitis from multiple mints simultaneously, complicating attribution of individual pieces to specific facilities.