"Proroga al 31 dicembre 1890 dei poteri conferiti al Collegio Arbitrale Silano"

This procedure concerns the extension of powers granted to the Silano Arbitration Board. The extension is set to last until December 31, 1890, ensuring continuity in its functions. This measure primarily affects parties involved in disputes that fall under the jurisdiction of the Silano Arbitration Board, allowing for the continued resolution of matters.