Page "Military of San Marino" Paragraph 6

Most members of the Guard of the Rock are full-time soldiers, but there is also a single Company of volunteers called the " Fortress Guard, Artillery Company " which exists for the now purely ceremonial duty of firing the cannon of the Palazzo Pubblico on ceremonial occasions.

This volunteer unit maintains the original artillery function of the Fortress Guard.

Although both units are part of the same Guard Corps, and wear the same uniform, the Artillery Unit has a totally different military cap badge, as a reminder of its historical origins.