Gellir lawrlwytho cynnwys at ddefnydd anfasnachol, megis defnydd personol neu ar gyfer adnoddau addysgol.
Ar gyfer defnydd masnachol cysyllwch yn uniongyrchol gyda deilydd yr hawlfraint os gwelwch yn dda.
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Disgrifiad

Interior of machine hall at Dinorwig hydro-electric power station taken during construction in 1982

Oes gennych chi wybodaeth ychwanegol am yr eitem hon? Gadewch sylwad isod

Sylwadau (2)

Anonymous's profile picture
lot of work going on in main caven ,
Comisiwn Brenhinol Henebion Cymru's profile picture
Thanks for your comment - do you have any connection with the power station yourself? RCAHMW

Rhaid mewngofnodi i bostio sylw