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Llewellyn (Plymouth) Limited

Sir David R. Llewellyn's company, based at South Duffryn Colliery office, which in 1934 controlled five collieries employing 1,780 men and producing 500,000 tons a year.

Mines operated

MineRegionYears
Graig Colliery, Pentrebach Merthyr Tydfil ?–1937

Record created: 19 September 2026 · Last researched: 19 September 2026

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