Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Oil Exploration, poster
'Shell The Oil Industry Chart 1' information poster showing the survey methods used to identify oil traps.
Pwnc
Diwydiant
Rhif yr Eitem
58.200/1
Creu/Cynhyrchu
unknown
Mesuriadau
Meithder
(mm): 580
Lled
(mm): 788
Deunydd
Paper
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.