Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Federation of Iron & Steel Manuf., survey
The National Federation of Iron and Steel Manufacturers questionnaire on blast furnace practice. Dated February 1933. 8 pages stapled in top left corner. Typed in black ink on cream paper.
Pwnc
Diwydiant
Rhif yr Eitem
86.129I/1315
Mesuriadau
Meithder
(mm): 330
Lled
(mm): 207
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.