Bundle of Correspondence and Documents Relating to Slate Sales and Accounts of the Penrhyn Quarry This includes letters addressed to Lord Penrhyn from various correspondents, for instance Walter D. Hobson. R.C.Trench, Whinney Smith & Whinney, Ernest Neele, Lord Penrhyn, W. Grey, Oakeley and Alfred H. Richards. The topics discussed include: accounts, sales of slate, subscriptions, the quarry strike and reports. This bundle also includes various documents with a list of various subscriptions between 1891- 1901, investment accounts balance sheets for 1902, Penrhyn Quarry report for the year ending 31st December 1901, Quarry Accounts and Balance Sheets between 1907-1908, and two proofs of a leaflet with prices of Penrhyn Slate at Port Penrhyn. July 1905- Jan 1914