... Just for interest. This is the earlier helmet plate, 1844-60, on the bell top shako. Note the plate is a full star and separate from the crown. The PAOLYC being "Light Dragoons" up until the early 1870s.
* Note also that there is no "hatching" behind the LYC ..... and appears to have been japanned or blackened in some way once upon a time. We have an example in the Officers Mess at the Squadron.