Copy petition Copy petition of Sir George Yonge and Lt. General Warburton requesting a [Crown] lease for a term of years of all mines and minerals to be found on the wastes of the parishes of Llanllechid, Llanddeiniolen and Caerhun, co. Caernarfon. They cite a smiliar lease granted to Sir John Wynn Bart. And Sir Lynch Salusbury Cotton Bart on July 14, 1757 Post 1757