Ffestiniog District Slate Quarry Proprietors' Association,
- BD5.
- Series
- 1902-1934.
Papers relating to the Ffestiniog branch of the North Wales Slate Quarries Association, established to promote and protect the North Wales slate industry during a period of depression in the trade. Particularly interesting are the reports on the slate industries and use of slate in North America and Europe, 1924-1930.
Ffestiniog District Slate Quarry Proprietors' Association.