"The  richest in all Wales"
Subtitle: the Welsh Potosi or Esgair Hir and Esgair Fraith lead and copper mines of Cardiganshire
By: by Marilyn Palmer.
Contributors: Northern Mine Research Society.
Series: British mining -- no.22; A Monograph of the Northern Mine Research Society
Publisher: Northern Mine Research Society
Published: 1983
Place of publication: Sheffield
Language: eng
Number of pages: 47
Subjects: Copper mines and mining -- Wales -- Fraith Ridge (Dyfed) -- History.; Lead mines and mining -- Wales -- Hir Ridge (Dyfed) -- History.
Notes: Errata slip inserted.

Bibliography: p47.