Brynderi Colliery, Cwmtwrch
Contributed by Mrs.Winifred Jean Chart of Alltwen, March 2004
The front cover, or first page, of this document states;
"With the Compliments of Brynderi Anthracite Limited, York Mansion, Petty France, London, SW1. And Lower Cwmtwrch, Swansea Valley."
The document being copied is itself a reprint from the Colliery Guardian of April 5, 1929
N.B there are 10 separate jpg images of two-column pages (over 6 mb in all). A couple of them may need sideways scrolling to view complete diagrams.
See also the coal mining site on genuki
https://www.genuki.org.uk/big/wal/GLA/Llangiwg/coal

See profile page for copyright and acknowledgements.