Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Some experiments in Fluorescent Lighting on the Coal Face (booklet)
Information Bulletin No. EE(50)3. '50/10' handwritten beneath bulletin number. 18 pages with appendices.
Pwnc
Diwydiant
Rhif yr Eitem
2018.42/13
Creu/Cynhyrchu
National Coal Board Production Department
Dyddiad: 1950
Derbyniad
Old stock, 26/1/2018
Mesuriadau
Meithder
(mm): 331
Lled
(mm): 204
Deunydd
cerdyn
papur
metel
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.