Cannonball gauge control stand

This control stand allows verification of the iron cannonballs for size and imperfections, which could cause serious damage to the cannon barrel or even make it explode. In addition, portable gauges were also used, also described in Volume 1 of the "Mémoires d’artillerie" by Surirey de Saint Remy, the French “lieutenant du Grand-Maître d’artillerie de France” (BnF)