you are right Huw but for sure in 1815 the trumpeter didn't worn they old tunics.
in some case the Bourbon lace can be used but I think that many rgt still had theyr old green laced tunic
I agree Ivo. In 1815 definitely not the old tunics as they'd have lost them during the 1812 campaign and those that survived must have been rags. So I'd also say Imperial livery or livery of the maison du roi.
What are your thoughts Ivo on trumpeters wearing a cuirass? I can find no references after 1807 and even then only for the 6th and 7th regiments. In your extensive iconography do you know of other examples?
Cheers
Huw