The Llandudno New [Copper] Mine Company,
The Llandudno New [Copper] Mine Company,
Sale accounts,
Sale accounts,
Papers relating to mining,
Papers relating to mining,
Letters to the Reverend Richard Howard,
Letters to the Reverend Richard Howard,
Letters to the Reverend Richard Howard,
Letters to the Reverend Richard Howard,
Letters to Mrs Hephzibah Williams, etc.,
Letters to Mrs Hephzibah Williams, etc.,
Hen Fferm colliery account book,
Hen Fferm colliery account book,
Hafodunos and Wigfair estate accounts,
Hafodunos and Wigfair estate accounts,
Account book,
Account book,
