Blasting test reports using P.A.G.A non -permitted explosive, P.A.G.B. explosive and polar ajax

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Douglas Simpson, Colliery Manager, PapersD624

Photographs and negativesD624/2

Abercynon CollieryD624/4/1

Abernant CollieryD624/4/2

Cwmgorse CollieryD624/4/3

Llanharan CollieryD624/4/4

Nantgarw CollieryD624/4/5

Taff Merthyr CollieryD624/4/6

National Coal BoardD624/4/7

TestsD624/4/8

Typed report on explosive trials at Nantgarw Colliery including photographsD624/4/8/1

Blasting test reports using P.A.G.A non -permitted explosive, P.A.G.B. explosive and polar ajaxD624/4/8/2

Planning the ventilation of new or reorganised collieries, information bulletin no. MP(51)14D624/4/8/3

Locomotives and machineryD624/4/9

ExplosionsD624/4/10

Intensive stonedriftingD624/4/11

DraftsD624/4/12

Other reportsD624/4/13

PapersD624/5

Plans, drawings, charts and diagramsD624/6

NotebooksD624/7

Handwritten notes and other papersD624/8

Social eventsD624/9

MagazinesD624/10

Catalogues and advertisementsD624/11

Information bookletsD624/12

Operating instructionsD624/13

CorrespondenceD624/14