Two Swiss units that were in French service before the French Revolution were also taken into British service during the Peninsula Wars. The Regiment de Roll was originally created from the disbanded Swiss Guards in the pay of France. Dillon's regiment was also formed from Swiss émigrés from French service. These two regiments were merged into a single provisional battalion, termed the Roll-Dillon battalion, the regiment was made up of 3 companies of regt de Roll and 5 companies of regt Dillon, hence very unusually the figures in the unit have both light blue and yellow facings.
I’m not sure of the make of figures and once again they are based up to Posties version of GdB rules.