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Amgueddfa Cymru – Museum Wales
Full title - Marwnad Er coffadwriaeth am y Ddamchwa Echryslon A Gymerodd Le Yn Mhwll Glo Cethin, Ger Merthyr, Swydd Forganwg, dydd Mercher, Chwefror 19, 1862, trwy yr hon y collodd 49 eu bywydau. Printed in black on four sides of single folded sheet of paper. Printed in Welsh.
