Coat of arms of the Charles III of Spain with the collar and mantle of his Order (Spain)Also used by Charles IV. 1st design of the mantle adopted on 19 September 1771 and removed since 10 October 1789.
Ceballos-Escalera y Gila, Alfonso (2017) The Royal and Distinguished Spanish Order of Charles III. Madrid: Boletín Oficial del Estado
Heralder