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Building the Vyrnwy dam, June 1887

Building the Vyrnwy dam, June 1886

Building the Vyrnwy dam, June 1887

Building the Vyrnwy dam, June 1886

The back of the wall of the Vyrnwy dam, June 1886

The Vyrnwy quarry, June 1886

Building the water face of the wall of the...

Building the wall of the Vyrnwy dam, October 1884

Building the wall of the Vyrnwy dam, September...

Building the Vyrnwy dam, 1882

Building the Vyrnwy dam, June 1882

Building the Vyrnwy dam, July 1882

Lake Vyrnwy photograph album [front cover]

Bottom left quarter of a plan of the land...

Journal of Constable Thomas Jones, 27 June -...

'Parochial noticies of the deanery of the...