"Convenzione per l'accollo e l'escavazione delle miniere Terranera e Calamita nell'Isola d'Elba e per la vendita del minerale escavato"
This procedure concerns an agreement for the extraction and sale of minerals from the Terranera and Calamita mines on the island of Elba, Italy. It outlines the terms for these mining operations. The agreement affects local mining activities and the sale of extracted minerals. It aims to regulate the exploitation of these specific mineral resources on Elba.