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Certificate
National Coal Board. Certificate of Authority as a Competent or Authorised Person. Issued to David John Williams of Blaenserchan Colliery authorised to "carryout the duties of electrican in charge of the mine in the absence of the unit electrical engineer and assistant electrical engineer". Dated 1 July 1960. Photocopy of black print on white paper with details handwritten.
Collection Area
Industry
Item Number
2005.116/13
Acquisition
Donation, 28/10/2005
Measurements
Length
(mm): 129
Width
(mm): 169
Material
paper
Location
In store
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