Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Graph recording test on mines rescue apparatus
Graph drawn in black ink on yellow lined graph paper. Full title: 'Duration of Absorbent / Practical Test with Mines Rescue Apparatus - Nov. 1937. / Weight of Absorbent = 4½ Lbs.' Documents 88.98I/7 - 9 were originally contained within an acidic card document file.
Pwnc
Diwydiant
Rhif yr Eitem
88.98I/8
Derbyniad
Collected officially, 1988
Mesuriadau
unfolded
(mm): 452
unfolded
(mm): 590
Deunydd
papur
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.