Group L is defined both by a new style of pony and by the small head above this pony. This small head appeared in the first coins of Series Y (Group H) but was not part of the questions in the expert system. This gives you an idea of how a non-hierarchical expert system works. The question was used here solely to differentiate between Group L and Group M. Group L had been previously seperated from the rest of Series Y by all of the previous questions. In other words, do not try to remember that the small head above the pony means it is Group L, because in most cases it will not be! This is the commonest assumption I have encountered with people using my expert system. Trust the system - don't be a back seat driver!
Now let's deal with the matter at hand. The engraver abandons his last driver and goes back to the original style. The obverse is left alone save for the abandonment of the curl at the front of the neck.
The new pony is certainly splendid, he might remind you of a Shetland pony or his head might seem like that of a sea-horse. Some people have likened him to a carousel horse. The lash from the banner to the small head undergoes modification in this group, ending up as the double line enclosing X's and staying that way until the end of the coinage. the banners also have some variations, although not as much as in Group H.