Letter from the Mines Department to E.I. David

Letter of advice from J.M Horsely (H.M. Inspector of Mines) to E. Ivor David (consultant engineer), concerning slip ring induction motors and flameproof enclosures. On cream coloured Mines Department headed paper, typed in black ink. Dated 2nd March, 1931. Attached to 83.184I/25 (5) with a staple.

Collection Area

Industry

Item Number

83.184I/25 (4)

Historical Associations

Association Type: Associated date

Date: 1931

Associated Person/Body: David, E. Ivor

Association Type: Associated person

Associated Person/Body: Horsley, J.B.

Association Type: Associated person

Acquisition

collected officially, 20/12/1983

Measurements

Length (mm): 246

Width (mm): 191

Material

Paper

Classification

trades health and safety electrical

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Bronze Age Gold from Wales