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Casgliad: 76 eitem

Gwaun Cae Gurwen

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The Lower Swansea Valley

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Old Amman Tin Works

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Fairplay Mine, Mitcheldean, Osman Barrett: 16"...

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Robert Crawshay, Cyfarthfa: 2 horse power...

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Henry Crawshay, Cinderford, Forest of Dean:...

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Cinderford Iron Company, elevation of 54”...

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Cannock Coal company: colliery ground plan, 19...

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Blowing apparatus, 11 Aug. 1865

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Rhymney Iron Company: plan for 8” locomotive, 1866

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Cadair Eisteddfod 1876

Casgliad: 2 eitem

Cadwraeth Cadair Eisteddfod

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Cadair Eisteddfod 1878 ar ôl chadwraeth

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Cadair Eisteddfod 1878 cyn cadwraeth

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Mynwent Vaynor

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Ystafell anhysbys

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Gweithfeydd Cyfarthfa, 1870au

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Gweithfeydd dur Penydarren, effaith y Streic

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Castell Cyfarthfa a rhan o'r gweithfeydd dur

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Melinau rheiliau Cyfarthfa a Chefn Cil-Sanws

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Augusta Hall (Arglwyddes Llanofer) (1802-96)

Stori: 10 eitem

History of Y Wladfa, Patagonia

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Patagonia 2015 - Puerto Madryn - Amgueddfa

Casgliad: 3 eitem

Adrian Stephens

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Brecknock & Abergavenny Canal Company...

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Craen crochan Fictoraidd yn Tŷ-mawr, Bryneglwys...

Stori: 4 eitem

Augusta Hall, Arglwyddes Llanofer (‘Gwenynen...