The gold coins are undoubtedly magnificent pieces of work, and they show the king holding a sword and an olive branch on the obverse, signifying his wish for peace rather than war.
The extremely rare Shrewsbury-produced coin shows, on the obverse, a plume behind the kings' head surrounded by the legend CAROLUS DG MAG BRIT FRAN ET HIBER REX -- Charles by the grace of God King of Great Britain France and Ireland. The reverse shows the legend RELIG PROT LEG ANG LIBER PAR in two lines -- The religion of the Protestants, the laws of England and the liberty of Parliament, with three plumes and the value numeral III above the declaration and the year 1642 below it, the whole being surrounded by the legend EXURGAT DEUS DISSIPENTUR INIMICI -- Let God arise and His enemies be scattered.
The Oxford issues are very similar to the Shrewsbury one, except that the legend on the reverse appears in three lines rather than two, and the obverse legend appears as CAROLUS DG MAG BRIT FR ET HIB REX. Oxford coins appear with slight design differences in each year of 1642, 1643, and 1644.