Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Report
Five pages stapled together. Title: 'National Federation of Iron & Steel Manufacturers: Concentration of Northants Ore by Washing & Screening' Laboratory tests carried out by Lloyds Ironstone Co. Ltd. Dated 9th June, 1931.
Pwnc
Diwydiant
Rhif yr Eitem
86.129I/658
Derbyniad
Bequest, 8/9/1986
Mesuriadau
Meithder
(mm): 331
Lled
(mm): 204
Deunydd
papur
Lleoliad
In store
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