See Christian Aries, IX 3o fascicule, 1968, Cuirasses des Carabiniers en 1810, Troupe & Officiers.
Also see Emir Bukhari and Angus McBride, Napoleon's Cuirassiers and Carabiniers, Osprey, 1977-98.
The two regiments of Carabiniers were heavily engaged at both Quatre Bras and Waterloo. In the period immediately following Bonaparte's final defeat evidently it was common practice for surviving French troops to deface the emblems of the First Empire on their uniforms and equipment, as is seen in this helmet. It therefore follows that not only would this helmet have belonged to one of a relatively small number of Carabiniers officers surviving 1815 but that it was highly likely to have been worn at either Quatre Bras or Waterloo.