Cymdeithas Gynorthwyol Glannau Ifor,
- NLW MS 10709D.
- Ffeil
- 1853-1887.
An account book of Glannau Ifor Benefit Society, Llanrug, containing particulars of monthly contributions by individual members and annual balance sheets, 1853-1887. The Society was established on 14 May, 1853.