Dyddiad ymuno: 12/06/17
Cerdyn post o draphont Crymlyn, tua 1900
Crumlin Navigation colliery
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Horse power computer 1908
Cerdyn post o draphont Crymlyn, tua 1910
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Yr adeilad tewhau slwtsh yn Hafodyrynys
Crumlin Navigation Powerhouse and Chimney
Glofa Crymlyn - Harry Kibby
Crumlin Navigation Colliery: The Fitting shop...
Glofa Crymlyn
Dwy bont faen yng Nghrymlyn