Hen Fferm colliery account book,
Hen Fferm colliery account book,
Letters to the Reverend Benjamin Conway and other miscellaneous letters,
Letters to the Reverend Benjamin Conway and other miscellaneous letters,
Letters to the Reverend John Conway Potter (later John Conway Conway),
Letters to the Reverend John Conway Potter (later John Conway Conway),
Letters to the Reverend John Conway Potter,
Letters to the Reverend John Conway Potter,
Papers relating to mining,
Papers relating to mining,
Valuation of the Wigfair estate,
Valuation of the Wigfair estate,
