Portugal, Barbuda billon coin from the reign of Ferdinand I (1367–1383), struck at the Lisbon mint and valued at 28 dinheiros. The obverse bears the legend ☩SI:DNS:MICHI:AIVTOR:NON:TI፨:: and the reverse ☩FERNANDVS:REX:PORTVGALI:AL, accompanied by the letter “L” identifying the Lisbon workshop. This type belongs to the monetary reforms introduced by Ferdinand I, known as “The Handsome”, born on 31 October 1345 and the ninth king of Portugal. His reign marked a significant diversification of Portuguese medieval coinage, with new types such as crowned pillars, graves, half‑barbudas, barbudas, half tornês, tornês de escudo, meio forte, real, gentil and the dobra pé‑de‑terra.

issued during the reign of King Ferdinand I, this bust-type tornês struck in billon reflects the evolution of Portuguese royal iconography in the 14th century. Minted in Lisbon, it forms part of the monetary reforms introduced under the Fernandine administration and remains a key reference piece for the study of medieval Portuguese coinage.