Template was one of the five (different!) variants of the painting "Napoleon on the Great St. Bernard in May 1800" by Jaques-Louis David - I think this one that hangs at Chateau Malmaison ...
In all other variants, this tresse has a different shape (as here, in the variant at the Belvedere Palace in Vienna) ...
... and in two variants, the gold trim on the hat is different ...: