Prominent metal sign right next to the main entrance of the massive 1925 Banco de España building in Santander. Denarius was the old 10 —"deni", or 'in tens'— Roman coin first issued by the Republic in 211 BC and last issued under Diocletian in 275 AD; reissued by Eastern Roman Empire as the Denarius Auri; such long use ended up meaning "money" in the Med: Spanish dinero, Poruguese dinheiro, and Arab dinar. 7 September, iPhone 6 Plus.