These are the marks on the helmet. The 2 larger stamps are on the neckguard strap underneath the strap.
I attached some pictures of the marks. My sister has the helmet and was afraid to move the leather strap too much.
I don’t think mine looks like that. It doesn’t have the spike but the braided comb and the stars are different. I did see somewhere that French generals sometimes had stars on their dragoon helmet. Thank you though. Just looked up some Hussard images and found some similar. Thanks again.