Copy letter from research manager, W Idris Jones

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Former reference:DNCB/23/5/5/11

Archive Record|Table of contents

Records of Powell Duffryn LimitedDPD

Powell Duffryn Limited (formerly Powell Duffryn Associated Collieries Limited)DPD/1

Powell Duffryn Steam Coal Company LimitedDPD/2

Corporate and shareholdingDPD/2/1

FinanceDPD/2/2

Property and premisesDPD/2/3

StaffDPD/2/4

Agents department for the Rhymney Valley collieriesDPD/2/5

Ivor Williams' papers as chief engineer for the Rhymney Valley collieries, works and power stationsDPD/2/6

Correspondence and papers of managers of Bargoed coke ovens laboratoryDPD/2/7

Correspondence and papers of Joseph West, managerDPD/2/8

General correspondenceDPD/2/8/1

Correspondence: coke production and shipmentsDPD/2/8/2

Correspondence: Bargoed Tar PlantDPD/2/8/3

Correspondence: Ammonia plantDPD/2/8/4

Correspondence: chemicals including Presotim, Napthalene, Presomet etcDPD/2/8/5

1917-1925 (consumption of chemicals)DPD/2/8/5/1

1925-1930 (presomit and wood preservative)DPD/2/8/5/2

1918-1930 (Creosite Oil and Napthalene)DPD/2/8/5/3

1930-1932 (presotim and presomet)DPD/2/8/5/4

1932-1937 (naphthalene)DPD/2/8/5/5

Copy letter to Tal. Edwards, manager of the Maritime Coke WorksDPD/2/8/5/5/1

GDPD/2/8/5/5/2

Ha- to He-DPD/2/8/5/5/3

Hi- to Hy-DPD/2/8/5/5/4

I to JDPD/2/8/5/5/5

Letter from 'Coleman', Stephenson Clarke and Associated Companies Limited, By-Products DepartmentDPD/2/8/5/5/6

Ma- to Mc-DPD/2/8/5/5/7

Copy letter to A Nichol, The Cloisters, enclosing treated samplesDPD/2/8/5/5/8

Letter from T P Perkins, Chatham House, Cheshire regarding samplesDPD/2/8/5/5/9

Pi- to QDPD/2/8/5/5/10

Copy letter from research manager, W Idris JonesDPD/2/8/5/5/11

Sm- to Sy-DPD/2/8/5/5/12

E S Owen, Stephenson Clarke and Associated Companies By-Products departmentDPD/2/8/5/5/13

1937-1946 (presotim and presomet)DPD/2/8/5/6

Correspondence: Benzole plantDPD/2/8/6

Correspondence: gasholders and purifiersDPD/2/8/7

Correspondence: Caerphilly Tar Distillation worksDPD/2/8/8

Stores' copies of order lettersDPD/2/8/9

Goods outwards booksDPD/2/8/10

General coke production and shipmentsDPD/2/8/11

MiscellaneousDPD/2/8/12

Records of research departmentDPD/2/9

Welsh Associated Collieries LimitedDPD/3

Records of acquired companies and subsidiariesDPD/4

Housing societiesDPD/5