Keywords: Penrhyn slate quarries, near Bangor.jpeg Size mm 285 299 exhibition history Institution National Library of Wales Technique print lithograph bw object history object type PD-old-70-1923 place of creation place of discovery 1129964 Penrhyn slate quarries near Bangor Uploaded with GWToolset Penrhyn slate quarries near Bangor http //dams llgc org uk/behaviour/llgc-id 1129964/fedora-bdef image/reference Images uploaded as part of NLW - WMUK collaboration Welsh Landscape Collection Penrhyn Quarry Industries |