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
Article by J.B Deakin and W.T.K Braunholtz, 4 pages, Effect of Size of Coal on the Properties of the Resulting Coke. Printed in black ink on cream paper.
Report, 14 pages, On Visit to German Coke Ovens. Typed in black ink on thin cream paper.
Report, 19 pages, Kopper Coke Ovens. Typed in black ink on thin cream paper.
Report, 3 pages, KOGAG. Typed in black ink on thin cream paper.
Report, 17 pages, Collin Coke Ovens. Typed in black ink on thin cream paper.
Article by J.B Deakin and W.T.K Braunholtz. 4 pages, Effect of Size of Coal on the Properties of the Resulting Coke. Printed in black ink on cream paper.
Report, 6 pages, Of Visit to German Coke Ovens. Typed in black ink on cream paper.
Report, 10 pages, Otto Coke Ovens (continued). Typed in black ink on cream paper with red ink arrows on pages 9 and 10.
Report, 6 pages, Koppers Coke Ovens. Typed in black ink on cream paper with red ink arrows on pages 3 - 6.
Report, 4 pages, Kopper Coke Ovens (continued). Typed in black ink on cream paper.
Report, 9 pages, Kopper C.A.S. Process. Typed in black ink on cream paper.
Report, 3 pages, KOGAG, typed in black ink on cream paper.
Report, 4 pages, Collin Coke Ovens, typed in black ink on cream paper with red ink arrows on pages 1, 3 and 4.
Report, 8 pages, Collin Coke Ovens, typed in black ink on cream paper.
Report, 5 pages, Collin Coke Ovens, typed in black ink on cream paper with red ink arrows on page 5.
Report, 4 pages, Collin Coke Ovens, typed in black ink on cream paper with red ink arrows on pages 3 and 4.