More on the special chinscales for the Officers helmets of the Leib Kürassier Regiment:
Translated from J-L Larcade Volume II page 14:
The Officers helmet for the Regiment No. 1-the Leib Kürassier Regiment-has the unique chinscales according to the tradition: in accordance with the Regimental history they date back to 1814: spoils of war taken from the Manufacture de Versailles.France. This scales were flat-not convex; with a rim. Both of the chinscales halves are attached to the rosetten (trefoil shape) and secured by means of a small hinge. The Kokarde is not serrated, made of black painted tin plate with a silver board. Not totally round: cut off of at the hinge points to leave space for the chinscale halves to be moved in the hinges.
Francis