Llechwedd slate caverns
By: Ivor Wynne Jones.
Contributors: Llechwedd Slate Caverns.
Publisher: Llechwedd Slate Caverns
Published: 1993
Place of publication: BlaenauFfestiniog
Language: eng
Number of pages: 24
Subjects: Llechwedd Slate Mines -- History.; Slate industry -- Wales -- Blaenau Ffestiniog.; Blaenau Ffestiniog (Wales) -- Industries -- History.
Notes: Plan inside front cover.