50 Diners House of Council of Justice; silver

Andorra had no formal mint of its own in 1965 and relied on the Casa de la Moneda in Madrid for struck coinage. This issue was produced under the authority of the Casa de la Vall, the medieval building in Andorra la Vella that has served as the Andorran parliament since the 16th century — one of the smallest legislative chambers in the world by both physical scale and membership. The X# prefix in standard references signals this as a non-circulating or pattern-adjacent issue rather than everyday commerce coinage, consistent with Andorra's practice of issuing collector pieces decades before establishing a proper monetary framework.