"Convalidazione del Regio decreto 17 aprile 1907, n. 179, che modifica le tare legali degli oli minerali di resina e di catrame"

This procedure validates a Royal Decree from 1907 that modifies the legal tare weights for mineral oils derived from resin and tar. It ensures the decree's continued legal standing. This affects the trade and regulation of specific mineral oils, standardizing how their weight is calculated for official purposes.