Bronze Age Gold from Wales
Cefn Coed Colliery, low pressure steam flow chart
Handwritten/drawn in black and green ink on off-white, grey lined graph paper. 'Low Pressure Steam Flow Chart Cefn Coed Colliery'. Two graphs, one graph is labeled 'worst possible condition' the other is labeled 'best possible condition'. Loose within a green card file with all other documents with accession number 83.184I/67. The file is labelled 'Colliery Boiler Plant B31', 'Cefn Coed Data' and 'Colliery Engineering'.
Collection Area
Industry
Item Number
83.184I/67 (14)
Measurements
Length
(mm): 318
Width
(mm): 540
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