Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Federation of Iron & Steel Manuf., survey
Two page survey/questionnaire relating to blast furnace data and their correlation. Cover letter from the National Federation of Iron & Steel Manufacturers sent to W. Simons, East Moors Works. Typed in black ink on yellow, headed paper. Dated 31st October, 1930.
Pwnc
Diwydiant
Rhif yr Eitem
86.129I/1312
Mesuriadau
Meithder
(mm): 331
Lled
(mm): 204
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.