Ffeil BD6/3. - Porthmadog slate traffic,

Statistics of shipments and dues, correspondence, etc., with notes in support of Porthmadog as opposed to Deganwy as the port of shipment of Ffestiniog slate, and a paper read by Jonathan Davies at a public meeting at Portmadoc, 1886, supporting the development of a proposed Cambrian Railway branch line to the slate wharves. Papers include postal arrangements for different North Wales towns, population, number of deliveries, times of collections and deliveries from stations.