Fflotila Caergybi: Ships and slavery (2020)
Names of Dyffryn Nantlle Slate Quarries Artwork
Nantlle Railway tunnel, Dorothea Quarry
Inscription of JER with a partial date
Dororthea Quarry Beam Engine
'The Carved Slates of Dyffryn Ogwen 1830...
Photocopy of rubbing of carved slate