Mae'r cwcis hyn yn gwbl angenrheidiol ar gyfer weithrediad y wefan.
Rydym yn defnyddio Google Analytics i fesur sut ydych yn defnyddio'r wefan er mwyn i ni ei wella yn seiliedig ar angen defnyddwyr.
Gall y cwcis hyn gael eu gosod gan wefannau trydydd parti a gwneud pethau fel mesur sut rydych yn gwylio fideos YouTube.
Amgueddfa Cymru
Typed in black, red and purple ink on off-white paper. Ten pages attached with a paperclip, including eight pages of notes, a letter and a memorandum. The documents contain comparative data relating to coke and by-product plants, coke ovens, soaking pits, melting furnaces and washeries. Contains information from works at Glass Houghton, Scunthorpe, Margam and Dowlais. Includes a letter from Baldwins Ltd (Port Talbot Branch) typed on headed paper and a memorandum from Guest, Keen & Nettlefolds Ltd (Cardiff Works) also typed on headed paper.
