The earlier busts show considerably more detail of the king, who is looking to the left of the coin and has the value "XX" to the right, behind the kings' head. The legend on the obverse reads IACOBUS D G MAG BRI FRA ET HIB REX -- James by the grace of God King of Great Britain France and Ireland. The reverse shows a long cross over a crowned shield which shows the arms of the four countries, and the legend FACIAM EOS IN GENTEM UNAM -- I will make them one nation.
wikipedia.org dumped 2003-03-17 with terodump