Correspondence Addressed to Lord Penrhyn Together With Documents Relating to Llanllechid Slate Rock This includes letters addressed to Lord Penrhyn from B.Wyatt and Mr Wynne relating to the accounts of the Tal Llynogwen and Talywain. There are also documents such as a report entitled, ‘Llanllechid Slate Rock Copy Report dated 13th April 1822, from Mr Greenfield to the Commons of Woods &c. In answer to matters contained in Mr Farey’s report’. There’s also a note included relating to the memorial about waste lands with Lord North’s answer to this and a printed document entitled, ‘Copy Constitution John Probert Esq. to Assist in recovering the rents & c. within the Principality of Wales’. 21 December 1805- 09 January 1806