Bronze Age Gold from Wales
Powell Duffryn Ltd, letter re. turbo compressors
Typed in black ink on white paper. Signed in blue ink. A letter to E.Ivor David regarding the letter 83.184I/65 (2), dated 16 September, 1954. Letters 83.184I/65 (1-4) were pinned together. Loose within a beige/light brown file containing copies of the 'Metcalf papers' and documents relating to the 'Conversion of Turbo Compressor to Electrical Drive'.
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