This regiment dates back to 1793, originally as the Carabineros de María Luisa, then becoming the Húsares de María Luisa in 1803. In 1808 the regiment was used to form the 1st and 2nd Húsares de Extremadura, which later merged back in to a single regiment. The same uniform was retained throughout, aside from a change from the Mirleton to a shako, starting perhaps as early as late 1809.
The trumpeter wears "reversed colors" for the dolman and pelisse. The officer subsitutes silver for the white lace, and, oddly, even has silver epaulettes on the pelisse!
A fantastic source for information on all of the Spanish Hussars (and for many other Spanish troops as well) can be found at the Little Wars site.
These very nice castings are from Eagle figures, the only manufacturer I could find that does them in the fabulous Mirleton in 28 mm. With this uinit, we are back to "proper" 8 figure, 4 stand regiments!
I am afraid this unit didn't have a stellar battlefield record, earning the nickname "Run Away Marys" for their contribution to the War of the Oranges with Portugal in 1801. Of course, they weren't officially Hussars yet then, so maybe that accounts for it! :-)