Complex sentence: On the 3 November 1910, Lady Desart opened the door to Carnegie Library for the very first time with a silver key supplied by P.T. Murphy, Jeweller, High St., Kilkenny.
Split into simpler sentences: On the 3rd of November 1910, Lady Desart opened the door to Carnegie Library for the very first time with a silver key by P.T. Murphy. The silver key to open the library door was supplied by P.T. Murphy, Jeweller, High St., Kilkenny.