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Amgueddfa Cymru – Museum Wales
Geological Survey one-inch New Series solid edition sheets 229, 230, 246 and 247 (Swansea-Llanelli-Carmarthen area) mounted together, latter two are 1906 and 1907 eds, so all four are probably first eds of similar date. Colour printed on 36 pieces of paper backed onto linen. Folded into card covers.
