Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Helland-Hansen's Photometer, lantern slide
On the left, as it is sent down; in the middle, open for exposure; on the right, closed and ready for hauling up.
Pwnc
Diwydiant
Rhif yr Eitem
86.8I/150
Derbyniad
Donation, 8/1/1986
Mesuriadau
Meithder
(mm): 82
Lled
(mm): 82
Deunydd
gwydr
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.