"Grey Gog" seam, Trimsaran Colliery, Kidwelly, Carmarthenshire
- Made:
- 1843-1889
"Grey Gog" seam, Trimsaran Colliery, Kidwelly, Caemarthenshire, without band, analysed by W.J. Ward
"Grey Gog" seam, Trimsaran Colliery, Kidwelly, Caemarthenshire, without band, analysed by W.J. Ward