Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Graph
Handwritten in black ink and pencil on white graph paper with printed brown graph lines. Some details highlighted using red and yellow pencil. A graph on the effect of excess dust weight. The years plotted on the graph are 1940 - 1946. Loose within pink/peach card file with other documents relating to Middle Duffryn and Bargoed High Pressure Station.
Pwnc
Diwydiant
Rhif yr Eitem
83.184I/62 (47)
Historical Associations
Associated Person/Body: Powell Duffryn Ltd.
Association Type: Company name
Association Type: Associated date
Dyddiad: 1940
Creu/Cynhyrchu
Derbyniad
collected officially, 20/12/1983
Mesuriadau
Meithder
(mm): 153
Lled
(mm): 237
Deunydd
papur
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.