Galleons were Spanish treasure ships often raided by pirates. "Sickle" is the ancient Greek term for the shekel, the currency of Judea, as rendered by William Tyndale in his translation of the Greek New Testament, (later the King James Bible). Also translated as silverling. "Knut" or "Canute" is the name of an 11th-century King of England.

"Unum Galleon" written on the coins literally means "One Galleon". "Unum" may be used as Latin for "One".