Ferdinand VII (1808-1833). 30 sous. 1821. Mallorca. (Cal 2008-no cita). Ag. 26,70 g. Double strike of the Royal inscription on obverse and reverse. Apparently both stamps related to king Ferdinand VII were struck on reverse. When they realize that it was an error, they also struck the stamps on obverse trying to hide it. Unlisted? . Almost XF. Est...1500,00.